13127249688 has 64 divisors (see below), whose sum is σ = 37723311360. Its totient is φ = 3728954496.

The previous prime is 13127249659. The next prime is 13127249693. The reversal of 13127249688 is 88694272131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13127249688.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196770 + ... + 254897.

It is an arithmetic number, because the mean of its divisors is an integer number (589426740).

Almost surely, 2^13127249688 is an apocalyptic number.

It is an amenable number.

13127249688 is an abundant number, since it is smaller than the sum of its proper divisors (24596061672).

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

13127249688 is a wasteful number, since it uses less digits than its factorization.

13127249688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451856 (or 451852 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The spelling of 13127249688 in words is "thirteen billion, one hundred twenty-seven million, two hundred forty-nine thousand, six hundred eighty-eight".