57783238774 has 4 divisors (see below), whose sum is σ = 86674858164. Its totient is φ = 28891619386.

The previous prime is 57783238769. The next prime is 57783238831. The reversal of 57783238774 is 47783238775.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14445809692 + ... + 14445809695.

It is an arithmetic number, because the mean of its divisors is an integer number (21668714541).

Almost surely, 2^57783238774 is an apocalyptic number.

57783238774 is a deficient number, since it is larger than the sum of its proper divisors (28891619390).

57783238774 is a wasteful number, since it uses less digits than its factorization.

57783238774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28891619389.

The product of its digits is 55319040, while the sum is 61.

Subtracting from 57783238774 its reverse (47783238775), we obtain a palindrome (9999999999).

The spelling of 57783238774 in words is "fifty-seven billion, seven hundred eighty-three million, two hundred thirty-eight thousand, seven hundred seventy-four".