77057840574 has 48 divisors (see below), whose sum is σ = 196147237104. Its totient is φ = 21554640000.

The previous prime is 77057840549. The next prime is 77057840611. The reversal of 77057840574 is 47504875077.

It is a self number, because there is not a number n which added to its sum of digits gives 77057840574.

It is a congruent number.

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, 14965927 + ... + 14971074.

It is an arithmetic number, because the mean of its divisors is an integer number (4086400773).

Almost surely, 2^77057840574 is an apocalyptic number.

77057840574 is an abundant number, since it is smaller than the sum of its proper divisors (119089396530).

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

77057840574 is a wasteful number, since it uses less digits than its factorization.

77057840574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29937033 (or 29937030 counting only the distinct ones).

The product of its (nonzero) digits is 7683200, while the sum is 54.

The spelling of 77057840574 in words is "seventy-seven billion, fifty-seven million, eight hundred forty thousand, five hundred seventy-four".