13198751256 has 32 divisors (see below), whose sum is σ = 33002092800. Its totient is φ = 4398888480.

The previous prime is 13198751243. The next prime is 13198751257. The reversal of 13198751256 is 65215789131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13198751257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124885 + ... + 204923.

It is an arithmetic number, because the mean of its divisors is an integer number (1031315400).

Almost surely, 2^13198751256 is an apocalyptic number.

It is an amenable number.

13198751256 is an abundant number, since it is smaller than the sum of its proper divisors (19803341544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13198751256 is a wasteful number, since it uses less digits than its factorization.

13198751256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86919 (or 86915 counting only the distinct ones).

The product of its digits is 453600, while the sum is 48.

The spelling of 13198751256 in words is "thirteen billion, one hundred ninety-eight million, seven hundred fifty-one thousand, two hundred fifty-six".