99413793840 has 80 divisors (see below), whose sum is σ = 308277813600. Its totient is φ = 26502168576.

The previous prime is 99413793833. The next prime is 99413793847. The reversal of 99413793840 is 4839731499.

It is an interprime number because it is at equal distance from previous prime (99413793833) and next prime (99413793847).

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (99413793847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736746 + ... + 861174.

It is an arithmetic number, because the mean of its divisors is an integer number (3853472670).

Almost surely, 2^99413793840 is an apocalyptic number.

It is an amenable number.

99413793840 is an abundant number, since it is smaller than the sum of its proper divisors (208864019760).

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

99413793840 is a wasteful number, since it uses less digits than its factorization.

99413793840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127774 (or 127768 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 57.

The spelling of 99413793840 in words is "ninety-nine billion, four hundred thirteen million, seven hundred ninety-three thousand, eight hundred forty".