79491161527 has 16 divisors (see below), whose sum is σ = 84696832000. Its totient is φ = 74471490720.

The previous prime is 79491161513. The next prime is 79491161531. The reversal of 79491161527 is 72516119497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79491161527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79491161507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54124 + ... + 402382.

It is an arithmetic number, because the mean of its divisors is an integer number (5293552000).

Almost surely, 2^79491161527 is an apocalyptic number.

79491161527 is a deficient number, since it is larger than the sum of its proper divisors (5205670473).

79491161527 is a wasteful number, since it uses less digits than its factorization.

79491161527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348526.

The product of its digits is 952560, while the sum is 52.

The spelling of 79491161527 in words is "seventy-nine billion, four hundred ninety-one million, one hundred sixty-one thousand, five hundred twenty-seven".