13875888857831 has 64 divisors (see below), whose sum is σ = 20185235997696. Its totient is φ = 9175106304000.

The previous prime is 13875888857827. The next prime is 13875888857939.

13875888857831 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13875888857831 - 2² = 13875888857827 is a prime.

It is a super-2 number, since 2×13875888857831² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13875888857431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8749820 + ... + 10213281.

It is an arithmetic number, because the mean of its divisors is an integer number (315394312464).

Almost surely, 2^{13875888857831} is an apocalyptic number.

13875888857831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13875888857831 is a deficient number, since it is larger than the sum of its proper divisors (6309347139865).

13875888857831 is a wasteful number, since it uses less digits than its factorization.

13875888857831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18963192.

The product of its digits is 2890137600, while the sum is 80.

The spelling of 13875888857831 in words is "thirteen trillion, eight hundred seventy-five billion, eight hundred eighty-eight million, eight hundred fifty-seven thousand, eight hundred thirty-one".