13256948642 has 16 divisors (see below), whose sum is σ = 22862286720. Its totient is φ = 5647527168.

The previous prime is 13256948623. The next prime is 13256948689. The reversal of 13256948642 is 24684965231.

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, 2832767 + ... + 2837442.

It is an arithmetic number, because the mean of its divisors is an integer number (1428892920).

Almost surely, 2^13256948642 is an apocalyptic number.

13256948642 is a deficient number, since it is larger than the sum of its proper divisors (9605338078).

13256948642 is a wasteful number, since it uses less digits than its factorization.

13256948642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5670385.

The product of its digits is 2488320, while the sum is 50.

The spelling of 13256948642 in words is "thirteen billion, two hundred fifty-six million, nine hundred forty-eight thousand, six hundred forty-two".