13881693464 has 16 divisors (see below), whose sum is σ = 26033540400. Its totient is φ = 6939416032.

The previous prime is 13881693461. The next prime is 13881693479. The reversal of 13881693464 is 46439618831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881693461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137027 + ... + 215730.

It is an arithmetic number, because the mean of its divisors is an integer number (1627096275).

Almost surely, 2^13881693464 is an apocalyptic number.

It is an amenable number.

13881693464 is a deficient number, since it is larger than the sum of its proper divisors (12151846936).

13881693464 is a wasteful number, since it uses less digits than its factorization.

13881693464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357682 (or 357678 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The spelling of 13881693464 in words is "thirteen billion, eight hundred eighty-one million, six hundred ninety-three thousand, four hundred sixty-four".