12678397044 has 24 divisors (see below), whose sum is σ = 29859405408. Its totient is φ = 4186635360.

The previous prime is 12678397033. The next prime is 12678397087. The reversal of 12678397044 is 44079387621.

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, 4935787 + ... + 4938354.

It is an arithmetic number, because the mean of its divisors is an integer number (1244141892).

Almost surely, 2^12678397044 is an apocalyptic number.

It is an amenable number.

12678397044 is an abundant number, since it is smaller than the sum of its proper divisors (17181008364).

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

12678397044 is a wasteful number, since it uses less digits than its factorization.

12678397044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9874255 (or 9874253 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 51.

The spelling of 12678397044 in words is "twelve billion, six hundred seventy-eight million, three hundred ninety-seven thousand, forty-four".