13857171625 has 32 divisors (see below), whose sum is σ = 19093366656. Its totient is φ = 9956440000.

The previous prime is 13857171613. The next prime is 13857171659. The reversal of 13857171625 is 52617175831.

It is not a de Polignac number, because 13857171625 - 2¹³ = 13857163433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53415 + ... + 174835.

It is an arithmetic number, because the mean of its divisors is an integer number (596667708).

Almost surely, 2^13857171625 is an apocalyptic number.

It is an amenable number.

13857171625 is a deficient number, since it is larger than the sum of its proper divisors (5236195031).

13857171625 is a wasteful number, since it uses less digits than its factorization.

13857171625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121530 (or 121520 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The spelling of 13857171625 in words is "thirteen billion, eight hundred fifty-seven million, one hundred seventy-one thousand, six hundred twenty-five".