79990133012 has 12 divisors (see below), whose sum is σ = 139999784820. Its totient is φ = 39990194496.

The previous prime is 79990132967. The next prime is 79990133023. The reversal of 79990133012 is 21033109997.

It can be written as a sum of positive squares in 2 ways, for example, as 63068285956 + 16921847056 = 251134^2 + 130084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1180937 + ... + 1246832.

It is an arithmetic number, because the mean of its divisors is an integer number (11666648735).

Almost surely, 2^79990133012 is an apocalyptic number.

It is an amenable number.

79990133012 is a deficient number, since it is larger than the sum of its proper divisors (60009651808).

79990133012 is a wasteful number, since it uses less digits than its factorization.

79990133012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2436010 (or 2436008 counting only the distinct ones).

The product of its (nonzero) digits is 91854, while the sum is 44.

The spelling of 79990133012 in words is "seventy-nine billion, nine hundred ninety million, one hundred thirty-three thousand, twelve".