13512591272 has 32 divisors (see below), whose sum is σ = 25506225000. Its totient is φ = 6711005184.

The previous prime is 13512591269. The next prime is 13512591283. The reversal of 13512591272 is 27219521531.

13512591272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9614586916 + 3898004356 = 98054^2 + 62434^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1724708 + ... + 1732524.

Almost surely, 2^13512591272 is an apocalyptic number.

It is an amenable number.

13512591272 is a deficient number, since it is larger than the sum of its proper divisors (11993633728).

13512591272 is a wasteful number, since it uses less digits than its factorization.

13512591272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9245 (or 9241 counting only the distinct ones).

The product of its digits is 37800, while the sum is 38.

It can be divided in two parts, 1351259 and 1272, that added together give a palindrome (1352531).

The spelling of 13512591272 in words is "thirteen billion, five hundred twelve million, five hundred ninety-one thousand, two hundred seventy-two".