12437857404 has 144 divisors (see below), whose sum is σ = 36324288000. Its totient is φ = 3515073408.

The previous prime is 12437857351. The next prime is 12437857469. The reversal of 12437857404 is 40475873421.

12437857404 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 78 + 574 + 0 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 12437857404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9878527 + ... + 9879785.

It is an arithmetic number, because the mean of its divisors is an integer number (252252000).

Almost surely, 2^12437857404 is an apocalyptic number.

12437857404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12437857404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18162144000).

12437857404 is an abundant number, since it is smaller than the sum of its proper divisors (23886430596).

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

12437857404 is a wasteful number, since it uses less digits than its factorization.

12437857404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1672 (or 1667 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 12437857404 in words is "twelve billion, four hundred thirty-seven million, eight hundred fifty-seven thousand, four hundred four".