77252959631 has 6 divisors (see below), whose sum is σ = 82064562960. Its totient is φ = 72708667616.

The previous prime is 77252959601. The next prime is 77252959649. The reversal of 77252959631 is 13695925277.

It is not a de Polignac number, because 77252959631 - 2¹⁴ = 77252943247 is a prime.

It is a super-2 number, since 2×77252959631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77252959601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133655351 + ... + 133655928.

It is an arithmetic number, because the mean of its divisors is an integer number (13677427160).

Almost surely, 2^77252959631 is an apocalyptic number.

77252959631 is a deficient number, since it is larger than the sum of its proper divisors (4811603329).

77252959631 is a wasteful number, since it uses less digits than its factorization.

77252959631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267311313 (or 267311296 counting only the distinct ones).

The product of its digits is 7144200, while the sum is 56.

The spelling of 77252959631 in words is "seventy-seven billion, two hundred fifty-two million, nine hundred fifty-nine thousand, six hundred thirty-one".