76747135577 has 6 divisors (see below), whose sum is σ = 89277280218. Its totient is φ = 65783259024.

The previous prime is 76747135547. The next prime is 76747135627. The reversal of 76747135577 is 77553174767.

It can be written as a sum of positive squares in only one way, i.e., 47796453376 + 28950682201 = 218624^2 + 170149^2 .

It is not a de Polignac number, because 76747135577 - 2¹⁸ = 76746873433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76747135547) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 783133988 + ... + 783134085.

It is an arithmetic number, because the mean of its divisors is an integer number (14879546703).

Almost surely, 2^76747135577 is an apocalyptic number.

It is an amenable number.

76747135577 is a deficient number, since it is larger than the sum of its proper divisors (12530144641).

76747135577 is a wasteful number, since it uses less digits than its factorization.

76747135577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566268087 (or 1566268080 counting only the distinct ones).

The product of its digits is 30252600, while the sum is 59.

The spelling of 76747135577 in words is "seventy-six billion, seven hundred forty-seven million, one hundred thirty-five thousand, five hundred seventy-seven".