79386798650 has 12 divisors (see below), whose sum is σ = 147659445582. Its totient is φ = 31754719440.

The previous prime is 79386798619. The next prime is 79386798683. The reversal of 79386798650 is 5689768397.

It can be written as a sum of positive squares in 3 ways, for example, as 72195928249 + 7190870401 = 268693^2 + 84799^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 793867937 + ... + 793868036.

Almost surely, 2^79386798650 is an apocalyptic number.

79386798650 is a deficient number, since it is larger than the sum of its proper divisors (68272646932).

79386798650 is a wasteful number, since it uses less digits than its factorization.

79386798650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587735985 (or 1587735980 counting only the distinct ones).

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 79386798650 in words is "seventy-nine billion, three hundred eighty-six million, seven hundred ninety-eight thousand, six hundred fifty".