153985008138 has 16 divisors (see below), whose sum is σ = 331660017696. Its totient is φ = 47380002480.

The previous prime is 153985008113. The next prime is 153985008197. The reversal of 153985008138 is 831800589351.

It is a super-2 number, since 2×153985008138² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 987083308 + ... + 987083463.

It is an arithmetic number, because the mean of its divisors is an integer number (20728751106).

Almost surely, 2^153985008138 is an apocalyptic number.

153985008138 is an abundant number, since it is smaller than the sum of its proper divisors (177675009558).

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

153985008138 is a wasteful number, since it uses less digits than its factorization.

153985008138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1974166789.

The product of its (nonzero) digits is 1036800, while the sum is 51.

The spelling of 153985008138 in words is "one hundred fifty-three billion, nine hundred eighty-five million, eight thousand, one hundred thirty-eight".