157894894737 has 12 divisors (see below), whose sum is σ = 228075424720. Its totient is φ = 105260945688.

The previous prime is 157894894709. The next prime is 157894894741. The reversal of 157894894737 is 737498498751.

157894894737 is a `hidden beast` number, since 1 + 5 + 78 + 9 + 4 + 89 + 473 + 7 = 666.

It is not a de Polignac number, because 157894894737 - 2¹⁶ = 157894829201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157894894777) 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, 306378 + ... + 640044.

Almost surely, 2^157894894737 is an apocalyptic number.

It is an amenable number.

157894894737 is a deficient number, since it is larger than the sum of its proper divisors (70180529983).

157894894737 is a wasteful number, since it uses less digits than its factorization.

157894894737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386252 (or 386249 counting only the distinct ones).

The product of its digits is 426746880, while the sum is 72.

The spelling of 157894894737 in words is "one hundred fifty-seven billion, eight hundred ninety-four million, eight hundred ninety-four thousand, seven hundred thirty-seven".