15794899797504 has 40 divisors (see below), whose sum is σ = 42078600245880. Its totient is φ = 5264966598656.

The previous prime is 15794899797473. The next prime is 15794899797571. The reversal of 15794899797504 is 40579799849751.

It is a super-2 number, since 2×15794899797504² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141567409 + ... + 5141570480.

It is an arithmetic number, because the mean of its divisors is an integer number (1051965006147).

Almost surely, 2^{15794899797504} is an apocalyptic number.

It is an amenable number.

15794899797504 is an abundant number, since it is smaller than the sum of its proper divisors (26283700448376).

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

15794899797504 is an equidigital number, since it uses as much as digits as its factorization.

15794899797504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10283137910 (or 10283137894 counting only the distinct ones).

The product of its (nonzero) digits is 7201353600, while the sum is 84.

The spelling of 15794899797504 in words is "fifteen trillion, seven hundred ninety-four billion, eight hundred ninety-nine million, seven hundred ninety-seven thousand, five hundred four".