76776744434 has 64 divisors (see below), whose sum is σ = 135253843200. Its totient is φ = 32364686592.

The previous prime is 76776744431. The next prime is 76776744449. The reversal of 76776744434 is 43444767767.

It is not an unprimeable number, because it can be changed into a prime (76776744431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10640612 + ... + 10647824.

It is an arithmetic number, because the mean of its divisors is an integer number (2113341300).

Almost surely, 2^76776744434 is an apocalyptic number.

76776744434 is a deficient number, since it is larger than the sum of its proper divisors (58477098766).

76776744434 is a wasteful number, since it uses less digits than its factorization.

76776744434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8019.

The product of its digits is 66382848, while the sum is 59.

The spelling of 76776744434 in words is "seventy-six billion, seven hundred seventy-six million, seven hundred forty-four thousand, four hundred thirty-four".