77375257377 has 24 divisors (see below), whose sum is σ = 113416535232. Its totient is φ = 46886616480.

The previous prime is 77375257363. The next prime is 77375257381.

77375257377 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 77375257377 - 2²² = 77371063073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77375257377.

It is not an unprimeable number, because it can be changed into a prime (77375257307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2997508 + ... + 3023210.

It is an arithmetic number, because the mean of its divisors is an integer number (4725688968).

Almost surely, 2^77375257377 is an apocalyptic number.

It is an amenable number.

77375257377 is a deficient number, since it is larger than the sum of its proper divisors (36041277855).

77375257377 is a wasteful number, since it uses less digits than its factorization.

77375257377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34021 (or 34010 counting only the distinct ones).

The product of its digits is 52942050, while the sum is 60.

The spelling of 77375257377 in words is "seventy-seven billion, three hundred seventy-five million, two hundred fifty-seven thousand, three hundred seventy-seven".