12843394902 has 96 divisors (see below), whose sum is σ = 31323801600. Its totient is φ = 3773601216.

The previous prime is 12843394873. The next prime is 12843394903. The reversal of 12843394902 is 20949334821.

12843394902 is a `hidden beast` number, since 128 + 4 + 3 + 39 + 490 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12843394903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3867999 + ... + 3871317.

It is an arithmetic number, because the mean of its divisors is an integer number (326289600).

Almost surely, 2^12843394902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12843394902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15661900800).

12843394902 is an abundant number, since it is smaller than the sum of its proper divisors (18480406698).

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

12843394902 is a wasteful number, since it uses less digits than its factorization.

12843394902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4082 (or 4079 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 12843394902 in words is "twelve billion, eight hundred forty-three million, three hundred ninety-four thousand, nine hundred two".