12538527896 has 32 divisors (see below), whose sum is σ = 24077528640. Its totient is φ = 6118109088.

The previous prime is 12538527889. The next prime is 12538527929. The reversal of 12538527896 is 69872583521.

It is a happy number.

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, 392975 + ... + 423681.

It is an arithmetic number, because the mean of its divisors is an integer number (752422770).

Almost surely, 2^12538527896 is an apocalyptic number.

It is an amenable number.

12538527896 is a deficient number, since it is larger than the sum of its proper divisors (11539000744).

12538527896 is a wasteful number, since it uses less digits than its factorization.

12538527896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31943 (or 31939 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 56.

The spelling of 12538527896 in words is "twelve billion, five hundred thirty-eight million, five hundred twenty-seven thousand, eight hundred ninety-six".