79394533828 has 6 divisors (see below), whose sum is σ = 138940434206. Its totient is φ = 39697266912.

The previous prime is 79394533741. The next prime is 79394533831. The reversal of 79394533828 is 82833549397.

It can be written as a sum of positive squares in only one way, i.e., 70986010624 + 8408523204 = 266432^2 + 91698^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9924316725 + ... + 9924316732.

Almost surely, 2^79394533828 is an apocalyptic number.

It is an amenable number.

79394533828 is a deficient number, since it is larger than the sum of its proper divisors (59545900378).

79394533828 is a wasteful number, since it uses less digits than its factorization.

79394533828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19848633461 (or 19848633459 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 61.

The spelling of 79394533828 in words is "seventy-nine billion, three hundred ninety-four million, five hundred thirty-three thousand, eight hundred twenty-eight".