12507999999 has 16 divisors (see below), whose sum is σ = 18247457280. Its totient is φ = 7558104960.

The previous prime is 12507999983. The next prime is 12508000007. The reversal of 12507999999 is 99999970521.

It is a happy number.

It is not a de Polignac number, because 12507999999 - 2⁴ = 12507999983 is a prime.

12507999999 is a modest number, since divided by 999999 gives 12507 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507999949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551239 + ... + 573480.

It is an arithmetic number, because the mean of its divisors is an integer number (1140466080).

Almost surely, 2^12507999999 is an apocalyptic number.

12507999999 is a deficient number, since it is larger than the sum of its proper divisors (5739457281).

12507999999 is a wasteful number, since it uses less digits than its factorization.

12507999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125070.

The product of its (nonzero) digits is 37200870, while the sum is 69.

The spelling of 12507999999 in words is "twelve billion, five hundred seven million, nine hundred ninety-nine thousand, nine hundred ninety-nine".