13857138075 has 96 divisors (see below), whose sum is σ = 26121756672. Its totient is φ = 6421968000.

The previous prime is 13857138067. The next prime is 13857138077. The reversal of 13857138075 is 57083175831.

It is not a de Polignac number, because 13857138075 - 2³ = 13857138067 is a prime.

It is a super-2 number, since 2×13857138075² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13857138077) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1663170 + ... + 1671480.

It is an arithmetic number, because the mean of its divisors is an integer number (272101632).

Almost surely, 2^13857138075 is an apocalyptic number.

13857138075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13857138075 is a deficient number, since it is larger than the sum of its proper divisors (12264618597).

13857138075 is a wasteful number, since it uses less digits than its factorization.

13857138075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425 (or 8420 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 48.

The spelling of 13857138075 in words is "thirteen billion, eight hundred fifty-seven million, one hundred thirty-eight thousand, seventy-five".