15861481846272 has 240 divisors, whose sum is σ = 46228293231120. Its totient is φ = 5235123142656.

The previous prime is 15861481846267. The next prime is 15861481846303. The reversal of 15861481846272 is 27264818416851.

15861481846272 is a `hidden beast` number, since 1 + 5 + 8 + 6 + 1 + 481 + 84 + 6 + 2 + 72 = 666.

15861481846272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1150292754 + ... + 1150306542.

It is an arithmetic number, because the mean of its divisors is an integer number (192617888463).

Almost surely, 2^{15861481846272} is an apocalyptic number.

15861481846272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15861481846272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23114146615560).

15861481846272 is an abundant number, since it is smaller than the sum of its proper divisors (30366811384848).

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

15861481846272 is a wasteful number, since it uses less digits than its factorization.

15861481846272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16253 (or 16234 counting only the distinct ones).

The product of its digits is 41287680, while the sum is 63.

The spelling of 15861481846272 in words is "fifteen trillion, eight hundred sixty-one billion, four hundred eighty-one million, eight hundred forty-six thousand, two hundred seventy-two".