13864120516 has 27 divisors (see below), whose sum is σ = 24525895303. Its totient is φ = 6857527040.

The previous prime is 13864120499. The next prime is 13864120541. The reversal of 13864120516 is 61502146831.

It is a happy number.

The square root of 13864120516 is 117746.

It is a perfect power (a square), and thus also a powerful number.

13864120516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8134236100 + 5729884416 = 90190^2 + 75696^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26610336 + ... + 26610856.

Almost surely, 2^13864120516 is an apocalyptic number.

13864120516 is the 117746-th square number.

It is an amenable number.

13864120516 is a deficient number, since it is larger than the sum of its proper divisors (10661774787).

13864120516 is an frugal number, since it uses more digits than its factorization.

13864120516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 13864120516 in words is "thirteen billion, eight hundred sixty-four million, one hundred twenty thousand, five hundred sixteen".