79293657872 has 80 divisors (see below), whose sum is σ = 191107268352. Its totient is φ = 31312988160.

The previous prime is 79293657871. The next prime is 79293657887. The reversal of 79293657872 is 27875639297.

It is a junction number, because it is equal to n+sod(n) for n = 79293657799 and 79293657808.

It is not an unprimeable number, because it can be changed into a prime (79293657871) 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, 980408 + ... + 1058199.

Almost surely, 2^79293657872 is an apocalyptic number.

It is an amenable number.

79293657872 is an abundant number, since it is smaller than the sum of its proper divisors (111813610480).

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

79293657872 is a wasteful number, since it uses less digits than its factorization.

79293657872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038656 (or 2038650 counting only the distinct ones).

The product of its digits is 80015040, while the sum is 65.

The spelling of 79293657872 in words is "seventy-nine billion, two hundred ninety-three million, six hundred fifty-seven thousand, eight hundred seventy-two".