57444644476 has 12 divisors (see below), whose sum is σ = 100891047208. Its totient is φ = 28618630992.

The previous prime is 57444644443. The next prime is 57444644489. The reversal of 57444644476 is 67444644475.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25921566 + ... + 25923781.

Almost surely, 2^57444644476 is an apocalyptic number.

It is an amenable number.

57444644476 is a deficient number, since it is larger than the sum of its proper divisors (43446402732).

57444644476 is a wasteful number, since it uses less digits than its factorization.

57444644476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51845628 (or 51845626 counting only the distinct ones).

The product of its digits is 36126720, while the sum is 55.

Subtracting 57444644476 from its reverse (67444644475), we obtain a palindrome (9999999999).

The spelling of 57444644476 in words is "fifty-seven billion, four hundred forty-four million, six hundred forty-four thousand, four hundred seventy-six".