79975824673856 has 56 divisors (see below), whose sum is σ = 164000621699904. Its totient is φ = 38671248268800.

The previous prime is 79975824673847. The next prime is 79975824673889. The reversal of 79975824673856 is 65837642857997.

It is a super-2 number, since 2×79975824673856² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (86).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143588300 + ... + 144144203.

Almost surely, 2^{79975824673856} is an apocalyptic number.

It is an amenable number.

79975824673856 is an abundant number, since it is smaller than the sum of its proper divisors (84024797026048).

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

79975824673856 is a wasteful number, since it uses less digits than its factorization.

79975824673856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287732659 (or 287732649 counting only the distinct ones).

The product of its digits is 38407219200, while the sum is 86.

The spelling of 79975824673856 in words is "seventy-nine trillion, nine hundred seventy-five billion, eight hundred twenty-four million, six hundred seventy-three thousand, eight hundred fifty-six".