77100023231 has 16 divisors (see below), whose sum is σ = 96134108928. Its totient is φ = 60072062400.

The previous prime is 77100023197. The next prime is 77100023233. The reversal of 77100023231 is 13232000177.

It is not a de Polignac number, because 77100023231 - 2⁶ = 77100023167 is a prime.

It is a super-2 number, since 2×77100023231² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77100023231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77100023233) 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, 849476 + ... + 935846.

It is an arithmetic number, because the mean of its divisors is an integer number (6008381808).

Almost surely, 2^77100023231 is an apocalyptic number.

77100023231 is a deficient number, since it is larger than the sum of its proper divisors (19034085697).

77100023231 is a wasteful number, since it uses less digits than its factorization.

77100023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97982.

The product of its (nonzero) digits is 1764, while the sum is 26.

The spelling of 77100023231 in words is "seventy-seven billion, one hundred million, twenty-three thousand, two hundred thirty-one".