3157765636 has 9 divisors (see below), whose sum is σ = 5526286549. Its totient is φ = 1578826624.

The previous prime is 3157765573. The next prime is 3157765661. The reversal of 3157765636 is 6365677513.

The square root of 3157765636 is 56194.

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

3157765636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 5616900 + 3152148736 = 2370^2 + 56144^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3157765636.

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, 98340 + ... + 126436.

Almost surely, 2^3157765636 is an apocalyptic number.

3157765636 is the 56194-th square number.

It is an amenable number.

3157765636 is a deficient number, since it is larger than the sum of its proper divisors (2368520913).

3157765636 is an frugal number, since it uses more digits than its factorization.

3157765636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56198 (or 28099 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 49.

The cubic root of 3157765636 is about 1467.1008366366.

Multiplying 3157765636 by its sum of digits (49), we get a square (154730516164 = 393358²).

The spelling of 3157765636 in words is "three billion, one hundred fifty-seven million, seven hundred sixty-five thousand, six hundred thirty-six".