15873157315872 has 72 divisors (see below), whose sum is σ = 45207788305680. Its totient is φ = 5283023464320.

The previous prime is 15873157315849. The next prime is 15873157315877. The reversal of 15873157315872 is 27851375137851.

15873157315872 is a `hidden beast` number, since 1 + 5 + 8 + 7 + 3 + 1 + 573 + 1 + 58 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (15873157315877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41627454 + ... + 42007037.

It is an arithmetic number, because the mean of its divisors is an integer number (627885948690).

Almost surely, 2^{15873157315872} is an apocalyptic number.

15873157315872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15873157315872 is an abundant number, since it is smaller than the sum of its proper divisors (29334630989808).

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

15873157315872 is a wasteful number, since it uses less digits than its factorization.

15873157315872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83635166 (or 83635155 counting only the distinct ones).

The product of its digits is 49392000, while the sum is 63.

The spelling of 15873157315872 in words is "fifteen trillion, eight hundred seventy-three billion, one hundred fifty-seven million, three hundred fifteen thousand, eight hundred seventy-two".