921196463040 has 560 divisors, whose sum is σ = 3751134366144. Its totient is φ = 210213273600.

The previous prime is 921196463027. The next prime is 921196463053. The reversal of 921196463040 is 40364691129.

921196463040 is a `hidden beast` number, since 9 + 2 + 1 + 1 + 9 + 6 + 4 + 630 + 4 + 0 = 666.

921196463040 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (921196463027) and next prime (921196463053).

It is a tau number, because it is divible by the number of its divisors (560).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 119928000 + ... + 119935680.

Almost surely, 2^921196463040 is an apocalyptic number.

921196463040 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 921196463040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875567183072).

921196463040 is an abundant number, since it is smaller than the sum of its proper divisors (2829937903104).

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

921196463040 is a wasteful number, since it uses less digits than its factorization.

921196463040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 921196463040 in words is "nine hundred twenty-one billion, one hundred ninety-six million, four hundred sixty-three thousand, forty".