79638703198 has 8 divisors (see below), whose sum is σ = 119495151720. Its totient is φ = 39806985960.

The previous prime is 79638703189. The next prime is 79638703231. The reversal of 79638703198 is 89130783697.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6174768 + ... + 6187651.

It is an arithmetic number, because the mean of its divisors is an integer number (14936893965).

Almost surely, 2^79638703198 is an apocalyptic number.

79638703198 is a deficient number, since it is larger than the sum of its proper divisors (39856448522).

79638703198 is a wasteful number, since it uses less digits than its factorization.

79638703198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12365642.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 79638703198 in words is "seventy-nine billion, six hundred thirty-eight million, seven hundred three thousand, one hundred ninety-eight".