12599531345 has 16 divisors (see below), whose sum is σ = 15939237888. Its totient is φ = 9546928320.

The previous prime is 12599531339. The next prime is 12599531359. The reversal of 12599531345 is 54313599521.

It is a de Polignac number, because none of the positive numbers 2^k-12599531345 is a prime.

It is a super-2 number, since 2×12599531345² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12599531345.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857474 + ... + 872043.

It is an arithmetic number, because the mean of its divisors is an integer number (996202368).

Almost surely, 2^12599531345 is an apocalyptic number.

It is an amenable number.

12599531345 is a deficient number, since it is larger than the sum of its proper divisors (3339706543).

12599531345 is a wasteful number, since it uses less digits than its factorization.

12599531345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729600.

The product of its digits is 729000, while the sum is 47.

The spelling of 12599531345 in words is "twelve billion, five hundred ninety-nine million, five hundred thirty-one thousand, three hundred forty-five".