77647441544364 has 96 divisors (see below), whose sum is σ = 183875557662720. Its totient is φ = 25498841063488.

The previous prime is 77647441544339. The next prime is 77647441544371. The reversal of 77647441544364 is 46344514474677.

It is a junction number, because it is equal to n+sod(n) for n = 77647441544295 and 77647441544304.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 814900477 + ... + 814995755.

It is an arithmetic number, because the mean of its divisors is an integer number (1915370392320).

Almost surely, 2^{77647441544364} is an apocalyptic number.

It is an amenable number.

77647441544364 is an abundant number, since it is smaller than the sum of its proper divisors (106228116118356).

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

77647441544364 is a wasteful number, since it uses less digits than its factorization.

77647441544364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97659 (or 97657 counting only the distinct ones).

The product of its digits is 758661120, while the sum is 66.

The spelling of 77647441544364 in words is "seventy-seven trillion, six hundred forty-seven billion, four hundred forty-one million, five hundred forty-four thousand, three hundred sixty-four".