57147767228 has 12 divisors (see below), whose sum is σ = 101213516040. Its totient is φ = 28229619792.

The previous prime is 57147767153. The next prime is 57147767263. The reversal of 57147767228 is 82276774175.

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, 86065583 + ... + 86066246.

It is an arithmetic number, because the mean of its divisors is an integer number (8434459670).

Almost surely, 2^57147767228 is an apocalyptic number.

It is an amenable number.

57147767228 is a deficient number, since it is larger than the sum of its proper divisors (44065748812).

57147767228 is a wasteful number, since it uses less digits than its factorization.

57147767228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172131916 (or 172131914 counting only the distinct ones).

The product of its digits is 9219840, while the sum is 56.

The spelling of 57147767228 in words is "fifty-seven billion, one hundred forty-seven million, seven hundred sixty-seven thousand, two hundred twenty-eight".