77753499031 has 16 divisors (see below), whose sum is σ = 86638224960. Its totient is φ = 69284517120.

The previous prime is 77753499023. The next prime is 77753499041. The reversal of 77753499031 is 13099435777.

It is not a de Polignac number, because 77753499031 - 2³ = 77753499023 is a prime.

It is a super-2 number, since 2×77753499031² (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 (77753499041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2381886 + ... + 2414308.

It is an arithmetic number, because the mean of its divisors is an integer number (5414889060).

Almost surely, 2^77753499031 is an apocalyptic number.

77753499031 is a deficient number, since it is larger than the sum of its proper divisors (8884725929).

77753499031 is a wasteful number, since it uses less digits than its factorization.

77753499031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38826.

The product of its (nonzero) digits is 5000940, while the sum is 55.

The spelling of 77753499031 in words is "seventy-seven billion, seven hundred fifty-three million, four hundred ninety-nine thousand, thirty-one".