15870118512 has 40 divisors (see below), whose sum is σ = 41870105856. Its totient is φ = 5177484736.

The previous prime is 15870118483. The next prime is 15870118513. The reversal of 15870118512 is 21581107851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15870118513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3515058 + ... + 3519569.

Almost surely, 2^15870118512 is an apocalyptic number.

15870118512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15870118512 is an abundant number, since it is smaller than the sum of its proper divisors (25999987344).

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

15870118512 is a wasteful number, since it uses less digits than its factorization.

15870118512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034685 (or 7034679 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 39.

The spelling of 15870118512 in words is "fifteen billion, eight hundred seventy million, one hundred eighteen thousand, five hundred twelve".