77007700854 has 48 divisors (see below), whose sum is σ = 190724625312. Its totient is φ = 21997713024.

The previous prime is 77007700799. The next prime is 77007700879. The reversal of 77007700854 is 45800770077.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 584472 + ... + 704004.

It is an arithmetic number, because the mean of its divisors is an integer number (3973429694).

Almost surely, 2^77007700854 is an apocalyptic number.

77007700854 is an abundant number, since it is smaller than the sum of its proper divisors (113716924458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77007700854 is a wasteful number, since it uses less digits than its factorization.

77007700854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124661 (or 124658 counting only the distinct ones).

The product of its (nonzero) digits is 384160, while the sum is 45.

The spelling of 77007700854 in words is "seventy-seven billion, seven million, seven hundred thousand, eight hundred fifty-four".