12540038408 has 16 divisors (see below), whose sum is σ = 24271042560. Its totient is φ = 6067760400.

The previous prime is 12540038359. The next prime is 12540038417. The reversal of 12540038408 is 80483004521.

12540038408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25282088 + ... + 25282583.

It is an arithmetic number, because the mean of its divisors is an integer number (1516940160).

Almost surely, 2^12540038408 is an apocalyptic number.

It is an amenable number.

12540038408 is a deficient number, since it is larger than the sum of its proper divisors (11731004152).

12540038408 is a wasteful number, since it uses less digits than its factorization.

12540038408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50564708 (or 50564704 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 12540038408 in words is "twelve billion, five hundred forty million, thirty-eight thousand, four hundred eight".