12474139440 has 80 divisors (see below), whose sum is σ = 44194099968. Its totient is φ = 2851231488.

The previous prime is 12474139361. The next prime is 12474139477. The reversal of 12474139440 is 4493147421.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3710862 + ... + 3714221.

Almost surely, 2^12474139440 is an apocalyptic number.

12474139440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12474139440 is an abundant number, since it is smaller than the sum of its proper divisors (31719960528).

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

12474139440 is a wasteful number, since it uses less digits than its factorization.

12474139440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7425106 (or 7425100 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 12474139440 in words is "twelve billion, four hundred seventy-four million, one hundred thirty-nine thousand, four hundred forty".