1913799888000 has 4608 divisors, whose sum is σ = 9983499402240. Its totient is φ = 340623360000.

The previous prime is 1913799887969. The next prime is 1913799888037. The reversal of 1913799888000 is 8889973191.

It is a super-2 number, since 2×1913799888000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 26954927965 + ... + 26954928035.

It is an arithmetic number, because the mean of its divisors is an integer number (2166558030).

Almost surely, 2^{1913799888000} is an apocalyptic number.

1913799888000 is a gapful number since it is divisible by the number (10) 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 1913799888000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4991749701120).

1913799888000 is an abundant number, since it is smaller than the sum of its proper divisors (8069699514240).

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

1913799888000 is a wasteful number, since it uses less digits than its factorization.

1913799888000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 63.

The spelling of 1913799888000 in words is "one trillion, nine hundred thirteen billion, seven hundred ninety-nine million, eight hundred eighty-eight thousand".