12511936459 has 8 divisors (see below), whose sum is σ = 13784528880. Its totient is φ = 11261868000.

The previous prime is 12511936457. The next prime is 12511936537. The reversal of 12511936459 is 95463911521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12511936459 - 2¹ = 12511936457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12511936453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5629824 + ... + 5632045.

It is an arithmetic number, because the mean of its divisors is an integer number (1723066110).

Almost surely, 2^12511936459 is an apocalyptic number.

12511936459 is a deficient number, since it is larger than the sum of its proper divisors (1272592421).

12511936459 is a wasteful number, since it uses less digits than its factorization.

12511936459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11261981.

The product of its digits is 291600, while the sum is 46.

The spelling of 12511936459 in words is "twelve billion, five hundred eleven million, nine hundred thirty-six thousand, four hundred fifty-nine".