157938507500 has 30 divisors (see below), whose sum is σ = 345379933668. Its totient is φ = 63175402000.

The previous prime is 157938507487. The next prime is 157938507533. The reversal of 157938507500 is 5705839751.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31585202 + ... + 31590201.

Almost surely, 2^157938507500 is an apocalyptic number.

157938507500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157938507500 is an abundant number, since it is smaller than the sum of its proper divisors (187441426168).

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

157938507500 is an equidigital number, since it uses as much as digits as its factorization.

157938507500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63175427 (or 63175410 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 50.

The spelling of 157938507500 in words is "one hundred fifty-seven billion, nine hundred thirty-eight million, five hundred seven thousand, five hundred".