79086566953 has 4 divisors (see below), whose sum is σ = 79094126020. Its totient is φ = 79079007888.

The previous prime is 79086566903. The next prime is 79086566987. The reversal of 79086566953 is 35966568097.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35966568097 = 157 ⋅229086421.

It can be written as a sum of positive squares in 2 ways, for example, as 24829250329 + 54257316624 = 157573^2 + 232932^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79086566953 is a prime.

It is a super-2 number, since 2×79086566953² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79086566903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3763818 + ... + 3784771.

It is an arithmetic number, because the mean of its divisors is an integer number (19773531505).

Almost surely, 2^79086566953 is an apocalyptic number.

It is an amenable number.

79086566953 is a deficient number, since it is larger than the sum of its proper divisors (7559067).

79086566953 is a wasteful number, since it uses less digits than its factorization.

79086566953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559066.

The product of its (nonzero) digits is 73483200, while the sum is 64.

The spelling of 79086566953 in words is "seventy-nine billion, eighty-six million, five hundred sixty-six thousand, nine hundred fifty-three".