57787678775 has 12 divisors (see below), whose sum is σ = 72352421232. Its totient is φ = 45781304640.

The previous prime is 57787678747. The next prime is 57787678777.

57787678775 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 57787678775 - 2²² = 57783484471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57787678777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11218334 + ... + 11223483.

It is an arithmetic number, because the mean of its divisors is an integer number (6029368436).

Almost surely, 2^57787678775 is an apocalyptic number.

57787678775 is a deficient number, since it is larger than the sum of its proper divisors (14564742457).

57787678775 is a wasteful number, since it uses less digits than its factorization.

57787678775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22441930 (or 22441925 counting only the distinct ones).

The product of its digits is 1129430400, while the sum is 74.

The spelling of 57787678775 in words is "fifty-seven billion, seven hundred eighty-seven million, six hundred seventy-eight thousand, seven hundred seventy-five".