13933168840 has 16 divisors (see below), whose sum is σ = 31349629980. Its totient is φ = 5573267520.

The previous prime is 13933168831. The next prime is 13933168841. The reversal of 13933168840 is 4886133931.

It can be written as a sum of positive squares in 2 ways, for example, as 13614689124 + 318479716 = 116682^2 + 17846^2 .

It is not an unprimeable number, because it can be changed into a prime (13933168841) 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, 174164571 + ... + 174164650.

Almost surely, 2^13933168840 is an apocalyptic number.

13933168840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13933168840 is an abundant number, since it is smaller than the sum of its proper divisors (17416461140).

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

13933168840 is a wasteful number, since it uses less digits than its factorization.

13933168840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348329232 (or 348329228 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 13933168840 in words is "thirteen billion, nine hundred thirty-three million, one hundred sixty-eight thousand, eight hundred forty".