79647464661523 has 8 divisors (see below), whose sum is σ = 87373551890880. Its totient is φ = 72002278869480.

The previous prime is 79647464661509. The next prime is 79647464661599. The reversal of 79647464661523 is 32516646474697.

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 79647464661523 - 2²⁵ = 79647431107091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79647464668523) 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, 20225357265 + ... + 20225361202.

It is an arithmetic number, because the mean of its divisors is an integer number (10921693986360).

Almost surely, 2^{79647464661523} is an apocalyptic number.

79647464661523 is a deficient number, since it is larger than the sum of its proper divisors (7726087229357).

79647464661523 is a wasteful number, since it uses less digits than its factorization.

79647464661523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40450718657.

The product of its digits is 1097349120, while the sum is 70.

The spelling of 79647464661523 in words is "seventy-nine trillion, six hundred forty-seven billion, four hundred sixty-four million, six hundred sixty-one thousand, five hundred twenty-three".