77072900924 has 12 divisors (see below), whose sum is σ = 134890211400. Its totient is φ = 38532840528.

The previous prime is 77072900921. The next prime is 77072900981. The reversal of 77072900924 is 42900927077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77072900921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 854159 + ... + 940070.

It is an arithmetic number, because the mean of its divisors is an integer number (11240850950).

Almost surely, 2^77072900924 is an apocalyptic number.

It is an amenable number.

77072900924 is a deficient number, since it is larger than the sum of its proper divisors (57817310476).

77072900924 is a wasteful number, since it uses less digits than its factorization.

77072900924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804972 (or 1804970 counting only the distinct ones).

The product of its (nonzero) digits is 444528, while the sum is 47.

The spelling of 77072900924 in words is "seventy-seven billion, seventy-two million, nine hundred thousand, nine hundred twenty-four".