13124009587885 has 12 divisors (see below), whose sum is σ = 18320046037308. Its totient is φ = 8999320860096.

The previous prime is 13124009587877. The next prime is 13124009587939. The reversal of 13124009587885 is 58878590042131.

It can be written as a sum of positive squares in 2 ways, for example, as 2502856889764 + 10621152698121 = 1582042^2 + 3259011^2 .

It is not a de Polignac number, because 13124009587885 - 2³ = 13124009587877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26783692792 + ... + 26783693281.

It is an arithmetic number, because the mean of its divisors is an integer number (1526670503109).

Almost surely, 2^{13124009587885} is an apocalyptic number.

It is an amenable number.

13124009587885 is a deficient number, since it is larger than the sum of its proper divisors (5196036449423).

13124009587885 is an equidigital number, since it uses as much as digits as its factorization.

13124009587885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53567386092 (or 53567386085 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 13124009587885 in words is "thirteen trillion, one hundred twenty-four billion, nine million, five hundred eighty-seven thousand, eight hundred eighty-five".