99510791952 has 320 divisors, whose sum is σ = 310576121856. Its totient is φ = 27052462080.

The previous prime is 99510791929. The next prime is 99510791953. The reversal of 99510791952 is 25919701599.

It is a junction number, because it is equal to n+sod(n) for n = 99510791892 and 99510791901.

It is not an unprimeable number, because it can be changed into a prime (99510791953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68769693 + ... + 68771139.

Almost surely, 2^99510791952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99510791952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155288060928).

99510791952 is an abundant number, since it is smaller than the sum of its proper divisors (211065329904).

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

99510791952 is a wasteful number, since it uses less digits than its factorization.

99510791952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 2296350, while the sum is 57.

The spelling of 99510791952 in words is "ninety-nine billion, five hundred ten million, seven hundred ninety-one thousand, nine hundred fifty-two".