12599401857287 has 32 divisors (see below), whose sum is σ = 14893914009600. Its totient is φ = 10429957923840.

The previous prime is 12599401857283. The next prime is 12599401857311. The reversal of 12599401857287 is 78275810499521.

It is a happy number.

It is not a de Polignac number, because 12599401857287 - 2² = 12599401857283 is a prime.

It is a super-2 number, since 2×12599401857287² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12599401857283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1037067089 + ... + 1037079237.

It is an arithmetic number, because the mean of its divisors is an integer number (465434812800).

Almost surely, 2^{12599401857287} is an apocalyptic number.

12599401857287 is a deficient number, since it is larger than the sum of its proper divisors (2294512152313).

12599401857287 is a wasteful number, since it uses less digits than its factorization.

12599401857287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21471.

The product of its (nonzero) digits is 101606400, while the sum is 68.

The spelling of 12599401857287 in words is "twelve trillion, five hundred ninety-nine billion, four hundred one million, eight hundred fifty-seven thousand, two hundred eighty-seven".