13933818864 has 120 divisors (see below), whose sum is σ = 44725610592. Its totient is φ = 3966842880.

The previous prime is 13933818779. The next prime is 13933818911. The reversal of 13933818864 is 46881833931.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 13933818864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258652 + ... + 307844.

Almost surely, 2^13933818864 is an apocalyptic number.

13933818864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13933818864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22362805296).

13933818864 is an abundant number, since it is smaller than the sum of its proper divisors (30791791728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13933818864 is a wasteful number, since it uses less digits than its factorization.

13933818864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49495 (or 49486 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 54.

The spelling of 13933818864 in words is "thirteen billion, nine hundred thirty-three million, eight hundred eighteen thousand, eight hundred sixty-four".