79797257933 has 8 divisors (see below), whose sum is σ = 84533140152. Its totient is φ = 75066034176.

The previous prime is 79797257929. The next prime is 79797257951. The reversal of 79797257933 is 33975279797.

It can be written as a sum of positive squares in 4 ways, for example, as 38385821929 + 41411436004 = 195923^2 + 203498^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79797257933 - 2² = 79797257929 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79797257963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129310 + ... + 1197887.

It is an arithmetic number, because the mean of its divisors is an integer number (10566642519).

Almost surely, 2^79797257933 is an apocalyptic number.

It is an amenable number.

79797257933 is a deficient number, since it is larger than the sum of its proper divisors (4735882219).

79797257933 is a wasteful number, since it uses less digits than its factorization.

79797257933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329231.

The product of its digits is 157529610, while the sum is 68.

The spelling of 79797257933 in words is "seventy-nine billion, seven hundred ninety-seven million, two hundred fifty-seven thousand, nine hundred thirty-three".