12511489899 has 16 divisors (see below), whose sum is σ = 16946589440. Its totient is φ = 8209706400.

The previous prime is 12511489889. The next prime is 12511489937. The reversal of 12511489899 is 99898411521.

It is not a de Polignac number, because 12511489899 - 2⁹ = 12511489387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511489889) 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, 77317 + ... + 176070.

It is an arithmetic number, because the mean of its divisors is an integer number (1059161840).

Almost surely, 2^12511489899 is an apocalyptic number.

12511489899 is a deficient number, since it is larger than the sum of its proper divisors (4435099541).

12511489899 is a wasteful number, since it uses less digits than its factorization.

12511489899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253650.

The product of its digits is 1866240, while the sum is 57.

The spelling of 12511489899 in words is "twelve billion, five hundred eleven million, four hundred eighty-nine thousand, eight hundred ninety-nine".