13943365812 has 24 divisors (see below), whose sum is σ = 36149467200. Its totient is φ = 4647788568.

The previous prime is 13943365801. The next prime is 13943365823. The reversal of 13943365812 is 21856334931.

13943365812 is a `hidden beast` number, since 1 + 39 + 4 + 3 + 36 + 581 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (13943365801) and next prime (13943365823).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64552512 + ... + 64552727.

It is an arithmetic number, because the mean of its divisors is an integer number (1506227800).

Almost surely, 2^13943365812 is an apocalyptic number.

13943365812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13943365812 is an abundant number, since it is smaller than the sum of its proper divisors (22206101388).

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

13943365812 is a wasteful number, since it uses less digits than its factorization.

13943365812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129105252 (or 129105244 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The spelling of 13943365812 in words is "thirteen billion, nine hundred forty-three million, three hundred sixty-five thousand, eight hundred twelve".