159842421392 has 20 divisors (see below), whose sum is σ = 327912026796. Its totient is φ = 75219962880.

The previous prime is 159842421377. The next prime is 159842421449. The reversal of 159842421392 is 293124248951.

It can be written as a sum of positive squares in 2 ways, for example, as 97184321536 + 62658099856 = 311744^2 + 250316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 159842421392.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293827709 + ... + 293828252.

Almost surely, 2^159842421392 is an apocalyptic number.

It is an amenable number.

159842421392 is an abundant number, since it is smaller than the sum of its proper divisors (168069605404).

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

159842421392 is a wasteful number, since it uses less digits than its factorization.

159842421392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587655986 (or 587655980 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 159842421392 in words is "one hundred fifty-nine billion, eight hundred forty-two million, four hundred twenty-one thousand, three hundred ninety-two".