57645128836 has 9 divisors (see below), whose sum is σ = 100879815799. Its totient is φ = 28822324324.

The previous prime is 57645128803. The next prime is 57645128857. The reversal of 57645128836 is 63882154675.

It is a happy number.

The square root of 57645128836 is 240094.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 420165 + ... + 540211.

Almost surely, 2^57645128836 is an apocalyptic number.

57645128836 is the 240094-th square number.

It is an amenable number.

57645128836 is a deficient number, since it is larger than the sum of its proper divisors (43234686963).

57645128836 is an frugal number, since it uses more digits than its factorization.

57645128836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240098 (or 120049 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 55.

The spelling of 57645128836 in words is "fifty-seven billion, six hundred forty-five million, one hundred twenty-eight thousand, eight hundred thirty-six".