12520583428 has 12 divisors (see below), whose sum is σ = 22617828352. Its totient is φ = 6058346760.

The previous prime is 12520583407. The next prime is 12520583497. The reversal of 12520583428 is 82438502521.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50486100 + ... + 50486347.

Almost surely, 2^12520583428 is an apocalyptic number.

It is an amenable number.

12520583428 is a deficient number, since it is larger than the sum of its proper divisors (10097244924).

12520583428 is a wasteful number, since it uses less digits than its factorization.

12520583428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100972482 (or 100972480 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 12520583428 in words is "twelve billion, five hundred twenty million, five hundred eighty-three thousand, four hundred twenty-eight".