8157238824 has 64 divisors (see below), whose sum is σ = 23403219840. Its totient is φ = 2320957440.

The previous prime is 8157238819. The next prime is 8157238867. The reversal of 8157238824 is 4288327518.

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, 60249 + ... + 141224.

It is an arithmetic number, because the mean of its divisors is an integer number (365675310).

Almost surely, 2^8157238824 is an apocalyptic number.

8157238824 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8157238824 is an abundant number, since it is smaller than the sum of its proper divisors (15245981016).

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

8157238824 is a wasteful number, since it uses less digits than its factorization.

8157238824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201730 (or 201726 counting only the distinct ones).

The product of its digits is 860160, while the sum is 48.

The square root of 8157238824 is about 90317.4336659319. The cubic root of 8157238824 is about 2013.0183132354.

The spelling of 8157238824 in words is "eight billion, one hundred fifty-seven million, two hundred thirty-eight thousand, eight hundred twenty-four".