79286508645 has 16 divisors (see below), whose sum is σ = 126887409792. Its totient is φ = 42276472640.

The previous prime is 79286508593. The next prime is 79286508649. The reversal of 79286508645 is 54680568297.

It is not a de Polignac number, because 79286508645 - 2¹⁶ = 79286443109 is a prime.

It is a super-2 number, since 2×79286508645² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79286508649) 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, 536022 + ... + 667751.

It is an arithmetic number, because the mean of its divisors is an integer number (7930463112).

Almost surely, 2^79286508645 is an apocalyptic number.

It is an amenable number.

79286508645 is a deficient number, since it is larger than the sum of its proper divisors (47600901147).

79286508645 is a wasteful number, since it uses less digits than its factorization.

79286508645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208172.

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 79286508645 in words is "seventy-nine billion, two hundred eighty-six million, five hundred eight thousand, six hundred forty-five".