13144251278 has 16 divisors (see below), whose sum is σ = 20577300480. Its totient is φ = 6285253656.

The previous prime is 13144251277. The next prime is 13144251283. The reversal of 13144251278 is 87215244131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13144251271) 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, 270443 + ... + 315321.

It is an arithmetic number, because the mean of its divisors is an integer number (1286081280).

Almost surely, 2^13144251278 is an apocalyptic number.

13144251278 is a deficient number, since it is larger than the sum of its proper divisors (7433049202).

13144251278 is a wasteful number, since it uses less digits than its factorization.

13144251278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51271.

The product of its digits is 53760, while the sum is 38.

The spelling of 13144251278 in words is "thirteen billion, one hundred forty-four million, two hundred fifty-one thousand, two hundred seventy-eight".