12519693964 has 6 divisors (see below), whose sum is σ = 21909464444. Its totient is φ = 6259846980.

The previous prime is 12519693943. The next prime is 12519694001. The reversal of 12519693964 is 46939691521.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1564961742 + ... + 1564961749.

Almost surely, 2^12519693964 is an apocalyptic number.

It is an amenable number.

12519693964 is a deficient number, since it is larger than the sum of its proper divisors (9389770480).

12519693964 is a wasteful number, since it uses less digits than its factorization.

12519693964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3129923495 (or 3129923493 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 55.

The spelling of 12519693964 in words is "twelve billion, five hundred nineteen million, six hundred ninety-three thousand, nine hundred sixty-four".