12958407568 has 40 divisors (see below), whose sum is σ = 25611717888. Its totient is φ = 6349229952.

The previous prime is 12958407559. The next prime is 12958407587. The reversal of 12958407568 is 86570485921.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722971 + ... + 740677.

Almost surely, 2^12958407568 is an apocalyptic number.

It is an amenable number.

12958407568 is a deficient number, since it is larger than the sum of its proper divisors (12653310320).

12958407568 is a wasteful number, since it uses less digits than its factorization.

12958407568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18631 (or 18625 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 12958407568 in words is "twelve billion, nine hundred fifty-eight million, four hundred seven thousand, five hundred sixty-eight".