12993042402 has 54 divisors (see below), whose sum is σ = 28649480769. Its totient is φ = 4255732800.

The previous prime is 12993042397. The next prime is 12993042407. The reversal of 12993042402 is 20424039921.

12993042402 is a `hidden beast` number, since 129 + 93 + 0 + 42 + 402 = 666.

It is an interprime number because it is at equal distance from previous prime (12993042397) and next prime (12993042407).

It can be written as a sum of positive squares in 2 ways, for example, as 7786121121 + 5206921281 = 88239^2 + 72159^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=80601.

It is not an unprimeable number, because it can be changed into a prime (12993042407) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 32401402 + ... + 32401802.

Almost surely, 2^12993042402 is an apocalyptic number.

12993042402 is an abundant number, since it is smaller than the sum of its proper divisors (15656438367).

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

12993042402 is an frugal number, since it uses more digits than its factorization.

12993042402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944 (or 473 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 12993042402 in words is "twelve billion, nine hundred ninety-three million, forty-two thousand, four hundred two".