159542317438 has 24 divisors (see below), whose sum is σ = 287984554200. Its totient is φ = 66017509488.

The previous prime is 159542317427. The next prime is 159542317481. The reversal of 159542317438 is 834713245951.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28065828 + ... + 28071511.

It is an arithmetic number, because the mean of its divisors is an integer number (11999356425).

Almost surely, 2^159542317438 is an apocalyptic number.

159542317438 is a deficient number, since it is larger than the sum of its proper divisors (128442236762).

159542317438 is a wasteful number, since it uses less digits than its factorization.

159542317438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56137384 (or 56137377 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 52.

The spelling of 159542317438 in words is "one hundred fifty-nine billion, five hundred forty-two million, three hundred seventeen thousand, four hundred thirty-eight".