77940614304 has 144 divisors (see below), whose sum is σ = 256777440192. Its totient is φ = 21963654144.

The previous prime is 77940614291. The next prime is 77940614333. The reversal of 77940614304 is 40341604977.

77940614304 is a `hidden beast` number, since 77 + 94 + 0 + 61 + 430 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 77940614304.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117634 + ... + 411969.

It is an arithmetic number, because the mean of its divisors is an integer number (1783176668).

Almost surely, 2^77940614304 is an apocalyptic number.

It is an amenable number.

77940614304 is an abundant number, since it is smaller than the sum of its proper divisors (178836825888).

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

77940614304 is a wasteful number, since it uses less digits than its factorization.

77940614304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529699 (or 529688 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 77940614304 in words is "seventy-seven billion, nine hundred forty million, six hundred fourteen thousand, three hundred four".