159871481028 has 60 divisors (see below), whose sum is σ = 477640727872. Its totient is φ = 45677565360.

The previous prime is 159871481027. The next prime is 159871481089. The reversal of 159871481028 is 820184178951.

159871481028 is a `hidden beast` number, since 1 + 5 + 98 + 71 + 481 + 0 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (159871481027) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35242768 + ... + 35247303.

Almost surely, 2^159871481028 is an apocalyptic number.

159871481028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

159871481028 is an abundant number, since it is smaller than the sum of its proper divisors (317769246844).

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

159871481028 is a wasteful number, since it uses less digits than its factorization.

159871481028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70490094 (or 70490083 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 54.

The spelling of 159871481028 in words is "one hundred fifty-nine billion, eight hundred seventy-one million, four hundred eighty-one thousand, twenty-eight".