12842991426 has 16 divisors (see below), whose sum is σ = 26514563328. Its totient is φ = 4142900400.

The previous prime is 12842991407. The next prime is 12842991443. The reversal of 12842991426 is 62419924821.

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, 34523985 + ... + 34524356.

It is an arithmetic number, because the mean of its divisors is an integer number (1657160208).

Almost surely, 2^12842991426 is an apocalyptic number.

12842991426 is an abundant number, since it is smaller than the sum of its proper divisors (13671571902).

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

12842991426 is a wasteful number, since it uses less digits than its factorization.

12842991426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69048377.

The product of its digits is 497664, while the sum is 48.

The spelling of 12842991426 in words is "twelve billion, eight hundred forty-two million, nine hundred ninety-one thousand, four hundred twenty-six".