912193926819840 has 936 divisors, whose sum is σ = 3894472807776720. Its totient is φ = 196236643663872.

The previous prime is 912193926819839. The next prime is 912193926819841. The reversal of 912193926819840 is 48918629391219.

912193926819840 is a `hidden beast` number, since 9 + 1 + 2 + 1 + 9 + 392 + 6 + 8 + 198 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (912193926819839) and next prime (912193926819841).

It is a super-2 number, since 2×912193926819840² (a number of 31 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912193926819841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 150567991 + ... + 156509129.

It is an arithmetic number, because the mean of its divisors is an integer number (4160761546770).

Almost surely, 2^{912193926819840} is an apocalyptic number.

912193926819840 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 912193926819840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1947236403888360).

912193926819840 is an abundant number, since it is smaller than the sum of its proper divisors (2982278880956880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

912193926819840 is a wasteful number, since it uses less digits than its factorization.

912193926819840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5941205 (or 5941173 counting only the distinct ones).

The product of its (nonzero) digits is 120932352, while the sum is 72.

The spelling of 912193926819840 in words is "nine hundred twelve trillion, one hundred ninety-three billion, nine hundred twenty-six million, eight hundred nineteen thousand, eight hundred forty".