779999132122231 has 96 divisors (see below), whose sum is σ = 971655398461440. Its totient is φ = 612908621144064.

The previous prime is 779999132122207. The next prime is 779999132122237. The reversal of 779999132122231 is 132221231999977.

It is not a de Polignac number, because 779999132122231 - 2⁴⁷ = 639261643766903 is a prime.

It is a super-2 number, since 2×779999132122231² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779999132122237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70543463055 + ... + 70543474111.

It is an arithmetic number, because the mean of its divisors is an integer number (10121410400640).

Almost surely, 2^{779999132122231} is an apocalyptic number.

779999132122231 is a deficient number, since it is larger than the sum of its proper divisors (191656266339209).

779999132122231 is a wasteful number, since it uses less digits than its factorization.

779999132122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13313 (or 13296 counting only the distinct ones).

The product of its digits is 46294416, while the sum is 67.

The spelling of 779999132122231 in words is "seven hundred seventy-nine trillion, nine hundred ninety-nine billion, one hundred thirty-two million, one hundred twenty-two thousand, two hundred thirty-one".