12591081334 has 16 divisors (see below), whose sum is σ = 20995551360. Its totient is φ = 5623807680.

The previous prime is 12591081323. The next prime is 12591081343. The reversal of 12591081334 is 43318019521.

It is a junction number, because it is equal to n+sod(n) for n = 12591081293 and 12591081302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7810039 + ... + 7811650.

It is an arithmetic number, because the mean of its divisors is an integer number (1312221960).

Almost surely, 2^12591081334 is an apocalyptic number.

12591081334 is a deficient number, since it is larger than the sum of its proper divisors (8404470026).

12591081334 is a wasteful number, since it uses less digits than its factorization.

12591081334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15621735.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 12591081334 in words is "twelve billion, five hundred ninety-one million, eighty-one thousand, three hundred thirty-four".