13144531327085 has 32 divisors (see below), whose sum is σ = 15866847834624. Its totient is φ = 10453551552000.

The previous prime is 13144531327063. The next prime is 13144531327133. The reversal of 13144531327085 is 58072313544131.

It is not a de Polignac number, because 13144531327085 - 2³⁰ = 13143457585261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1220357750 + ... + 1220368520.

It is an arithmetic number, because the mean of its divisors is an integer number (495838994832).

Almost surely, 2^{13144531327085} is an apocalyptic number.

It is an amenable number.

13144531327085 is a deficient number, since it is larger than the sum of its proper divisors (2722316507539).

13144531327085 is a wasteful number, since it uses less digits than its factorization.

13144531327085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12965.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 13144531327085 in words is "thirteen trillion, one hundred forty-four billion, five hundred thirty-one million, three hundred twenty-seven thousand, eighty-five".