13140431544 has 16 divisors (see below), whose sum is σ = 32851078920. Its totient is φ = 4380143840.

The previous prime is 13140431543. The next prime is 13140431587. The reversal of 13140431544 is 44513404131.

13140431544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140431543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273758967 + ... + 273759014.

Almost surely, 2^13140431544 is an apocalyptic number.

It is an amenable number.

13140431544 is an abundant number, since it is smaller than the sum of its proper divisors (19710647376).

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

13140431544 is a wasteful number, since it uses less digits than its factorization.

13140431544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547517990 (or 547517986 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 13140431544 its reverse (44513404131), we get a palindrome (57653835675).

The spelling of 13140431544 in words is "thirteen billion, one hundred forty million, four hundred thirty-one thousand, five hundred forty-four".