79691103146 has 8 divisors (see below), whose sum is σ = 123658608420. Its totient is φ = 38471567008.

The previous prime is 79691103137. The next prime is 79691103169. The reversal of 79691103146 is 64130119697.

It can be written as a sum of positive squares in 2 ways, for example, as 78309865921 + 1381237225 = 279839^2 + 37165^2 .

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

It is a super-2 number, since 2×79691103146² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79691103146.

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, 686992211 + ... + 686992326.

Almost surely, 2^79691103146 is an apocalyptic number.

79691103146 is a deficient number, since it is larger than the sum of its proper divisors (43967505274).

79691103146 is a wasteful number, since it uses less digits than its factorization.

79691103146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373984568.

The product of its (nonzero) digits is 244944, while the sum is 47.

The spelling of 79691103146 in words is "seventy-nine billion, six hundred ninety-one million, one hundred three thousand, one hundred forty-six".