79815222263 has 8 divisors (see below), whose sum is σ = 93078976800. Its totient is φ = 68413047360.

The previous prime is 79815222233. The next prime is 79815222301. The reversal of 79815222263 is 36222251897.

It is not a de Polignac number, because 79815222263 - 2¹⁸ = 79814960119 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 (79815222233) 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, 116348378 + ... + 116349063.

It is an arithmetic number, because the mean of its divisors is an integer number (11634872100).

Almost surely, 2^79815222263 is an apocalyptic number.

79815222263 is a deficient number, since it is larger than the sum of its proper divisors (13263754537).

79815222263 is an equidigital number, since it uses as much as digits as its factorization.

79815222263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232697462 (or 232697448 counting only the distinct ones).

The product of its digits is 725760, while the sum is 47.

The spelling of 79815222263 in words is "seventy-nine billion, eight hundred fifteen million, two hundred twenty-two thousand, two hundred sixty-three".