13893039831 has 96 divisors (see below), whose sum is σ = 22073446080. Its totient is φ = 7749181440.

The previous prime is 13893039817. The next prime is 13893039851.

13893039831 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13893039831 - 2¹³ = 13893031639 is a prime.

It is a super-2 number, since 2×13893039831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13893039851) 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, 20643111 + ... + 20643783.

It is an arithmetic number, because the mean of its divisors is an integer number (229931730).

Almost surely, 2^13893039831 is an apocalyptic number.

13893039831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13893039831 is a deficient number, since it is larger than the sum of its proper divisors (8180406249).

13893039831 is a wasteful number, since it uses less digits than its factorization.

13893039831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 806 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The spelling of 13893039831 in words is "thirteen billion, eight hundred ninety-three million, thirty-nine thousand, eight hundred thirty-one".