77054744739 has 96 divisors (see below), whose sum is σ = 133240135680. Its totient is φ = 39302480448.

The previous prime is 77054744717. The next prime is 77054744743. The reversal of 77054744739 is 93744745077.

It is not a de Polignac number, because 77054744739 - 2⁸ = 77054744483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (77054744839) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4295062 + ... + 4312964.

It is an arithmetic number, because the mean of its divisors is an integer number (1387918080).

Almost surely, 2^77054744739 is an apocalyptic number.

77054744739 is a deficient number, since it is larger than the sum of its proper divisors (56185390941).

77054744739 is a wasteful number, since it uses less digits than its factorization.

77054744739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18029 (or 18022 counting only the distinct ones).

The product of its (nonzero) digits is 20744640, while the sum is 57.

The spelling of 77054744739 in words is "seventy-seven billion, fifty-four million, seven hundred forty-four thousand, seven hundred thirty-nine".