5657121772 has 6 divisors (see below), whose sum is σ = 9899963108. Its totient is φ = 2828560884.

The previous prime is 5657121749. The next prime is 5657121797. The reversal of 5657121772 is 2771217565.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 707140218 + ... + 707140225.

Almost surely, 2^5657121772 is an apocalyptic number.

It is an amenable number.

5657121772 is a deficient number, since it is larger than the sum of its proper divisors (4242841336).

5657121772 is a wasteful number, since it uses less digits than its factorization.

5657121772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414280447 (or 1414280445 counting only the distinct ones).

The product of its digits is 205800, while the sum is 43.

The square root of 5657121772 is about 75213.8402955201. The cubic root of 5657121772 is about 1781.8255239411.

The spelling of 5657121772 in words is "five billion, six hundred fifty-seven million, one hundred twenty-one thousand, seven hundred seventy-two".