12520651404 has 48 divisors (see below), whose sum is σ = 30679342848. Its totient is φ = 3966650688.

The previous prime is 12520651399. The next prime is 12520651417. The reversal of 12520651404 is 40415602521.

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, 101142 + ... + 187805.

It is an arithmetic number, because the mean of its divisors is an integer number (639152976).

Almost surely, 2^12520651404 is an apocalyptic number.

It is an amenable number.

12520651404 is an abundant number, since it is smaller than the sum of its proper divisors (18158691444).

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

12520651404 is a wasteful number, since it uses less digits than its factorization.

12520651404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289134 (or 289132 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The spelling of 12520651404 in words is "twelve billion, five hundred twenty million, six hundred fifty-one thousand, four hundred four".