79616510845 has 8 divisors (see below), whose sum is σ = 96416325720. Its totient is φ = 63108866880.

The previous prime is 79616510843. The next prime is 79616510903. The reversal of 79616510845 is 54801561697.

It can be written as a sum of positive squares in 4 ways, for example, as 28020751236 + 51595759609 = 167394^2 + 227147^2 .

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

It is not a de Polignac number, because 79616510845 - 2¹ = 79616510843 is a prime.

It is a super-2 number, since 2×79616510845² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79616510792 and 79616510801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79616510843) 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, 73042126 + ... + 73043215.

It is an arithmetic number, because the mean of its divisors is an integer number (12052040715).

Almost surely, 2^79616510845 is an apocalyptic number.

It is an amenable number.

79616510845 is a deficient number, since it is larger than the sum of its proper divisors (16799814875).

79616510845 is a wasteful number, since it uses less digits than its factorization.

79616510845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146085455.

The product of its (nonzero) digits is 1814400, while the sum is 52.

The spelling of 79616510845 in words is "seventy-nine billion, six hundred sixteen million, five hundred ten thousand, eight hundred forty-five".