157939238403 has 12 divisors (see below), whose sum is σ = 231259585960. Its totient is φ = 103850457696.

The previous prime is 157939238399. The next prime is 157939238437. The reversal of 157939238403 is 304832939751.

157939238403 is a `hidden beast` number, since 1 + 579 + 3 + 9 + 23 + 8 + 40 + 3 = 666.

It is not a de Polignac number, because 157939238403 - 2² = 157939238399 is a prime.

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 157939238403.

It is not an unprimeable number, because it can be changed into a prime (157939238003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120196633 + ... + 120197946.

Almost surely, 2^157939238403 is an apocalyptic number.

157939238403 is a deficient number, since it is larger than the sum of its proper divisors (73320347557).

157939238403 is a wasteful number, since it uses less digits than its factorization.

157939238403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240394658 (or 240394655 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 157939238403 in words is "one hundred fifty-seven billion, nine hundred thirty-nine million, two hundred thirty-eight thousand, four hundred three".