79491191353 has 8 divisors (see below), whose sum is σ = 91227191040. Its totient is φ = 67850220480.

The previous prime is 79491191333. The next prime is 79491191357. The reversal of 79491191353 is 35319119497.

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

It is a de Polignac number, because none of the positive numbers 2^k-79491191353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79491191353.

It is not an unprimeable number, because it can be changed into a prime (79491191357) 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, 23755408 + ... + 23758753.

It is an arithmetic number, because the mean of its divisors is an integer number (11403398880).

Almost surely, 2^79491191353 is an apocalyptic number.

It is an amenable number.

79491191353 is a deficient number, since it is larger than the sum of its proper divisors (11735999687).

79491191353 is a wasteful number, since it uses less digits than its factorization.

79491191353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47514407.

The product of its digits is 918540, while the sum is 52.

The spelling of 79491191353 in words is "seventy-nine billion, four hundred ninety-one million, one hundred ninety-one thousand, three hundred fifty-three".