13872865744 has 20 divisors (see below), whose sum is σ = 27180687780. Its totient is φ = 6858494720.

The previous prime is 13872865723. The next prime is 13872865777. The reversal of 13872865744 is 44756827831.

It can be written as a sum of positive squares in 2 ways, for example, as 5411073600 + 8461792144 = 73560^2 + 91988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4869667 + ... + 4872514.

It is an arithmetic number, because the mean of its divisors is an integer number (1359034389).

Almost surely, 2^13872865744 is an apocalyptic number.

It is an amenable number.

13872865744 is a deficient number, since it is larger than the sum of its proper divisors (13307822036).

13872865744 is an equidigital number, since it uses as much as digits as its factorization.

13872865744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9742278 (or 9742272 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 55.

The spelling of 13872865744 in words is "thirteen billion, eight hundred seventy-two million, eight hundred sixty-five thousand, seven hundred forty-four".