8157380756 has 48 divisors (see below), whose sum is σ = 16438313472. Its totient is φ = 3469651200.

The previous prime is 8157380741. The next prime is 8157380783. The reversal of 8157380756 is 6570837518.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2099936 + ... + 2103816.

It is an arithmetic number, because the mean of its divisors is an integer number (342464864).

Almost surely, 2^8157380756 is an apocalyptic number.

It is an amenable number.

8157380756 is an abundant number, since it is smaller than the sum of its proper divisors (8280932716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8157380756 is a wasteful number, since it uses less digits than its factorization.

8157380756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4440 (or 4438 counting only the distinct ones).

The product of its (nonzero) digits is 1411200, while the sum is 50.

The square root of 8157380756 is about 90318.2194022889. The cubic root of 8157380756 is about 2013.0299883486.

The spelling of 8157380756 in words is "eight billion, one hundred fifty-seven million, three hundred eighty thousand, seven hundred fifty-six".