15912482674681 has 4 divisors (see below), whose sum is σ = 15918563106292. Its totient is φ = 15906402243072.

The previous prime is 15912482674657. The next prime is 15912482674709. The reversal of 15912482674681 is 18647628421951.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14622631842025 + 1289850832656 = 3823955^2 + 1135716^2 .

It is a cyclic number.

It is not a de Polignac number, because 15912482674681 - 2²³ = 15912474286073 is a prime.

It is a super-2 number, since 2×15912482674681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15912482674181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3040211880 + ... + 3040217113.

It is an arithmetic number, because the mean of its divisors is an integer number (3979640776573).

Almost surely, 2^{15912482674681} is an apocalyptic number.

It is an amenable number.

15912482674681 is a deficient number, since it is larger than the sum of its proper divisors (6080431611).

15912482674681 is an equidigital number, since it uses as much as digits as its factorization.

15912482674681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6080431610.

The product of its digits is 46448640, while the sum is 64.

The spelling of 15912482674681 in words is "fifteen trillion, nine hundred twelve billion, four hundred eighty-two million, six hundred seventy-four thousand, six hundred eighty-one".