12519957628 has 24 divisors (see below), whose sum is σ = 22057373520. Its totient is φ = 6217896960.

The previous prime is 12519957599. The next prime is 12519957689. The reversal of 12519957628 is 82675991521.

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, 1344348 + ... + 1353628.

It is an arithmetic number, because the mean of its divisors is an integer number (919057230).

Almost surely, 2^12519957628 is an apocalyptic number.

It is an amenable number.

12519957628 is a deficient number, since it is larger than the sum of its proper divisors (9537415892).

12519957628 is a wasteful number, since it uses less digits than its factorization.

12519957628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11517 (or 11515 counting only the distinct ones).

The product of its digits is 2721600, while the sum is 55.

The spelling of 12519957628 in words is "twelve billion, five hundred nineteen million, nine hundred fifty-seven thousand, six hundred twenty-eight".