13857052578655 has 16 divisors (see below), whose sum is σ = 19535537062944. Its totient is φ = 9302636695680.

The previous prime is 13857052578643. The next prime is 13857052578661. The reversal of 13857052578655 is 55687525075831.

It is not a de Polignac number, because 13857052578655 - 2²⁵ = 13857019024223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9690245844 + ... + 9690247273.

It is an arithmetic number, because the mean of its divisors is an integer number (1220971066434).

Almost surely, 2^{13857052578655} is an apocalyptic number.

13857052578655 is a deficient number, since it is larger than the sum of its proper divisors (5678484484289).

13857052578655 is a wasteful number, since it uses less digits than its factorization.

13857052578655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19380493146.

The product of its (nonzero) digits is 352800000, while the sum is 67.

The spelling of 13857052578655 in words is "thirteen trillion, eight hundred fifty-seven billion, fifty-two million, five hundred seventy-eight thousand, six hundred fifty-five".