12611894399 has 8 divisors (see below), whose sum is σ = 13621186320. Its totient is φ = 11608194816.

The previous prime is 12611894389. The next prime is 12611894401. The reversal of 12611894399 is 99349811621.

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 12611894399 - 2¹² = 12611890303 is a prime.

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 12611894399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611894389) 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, 1393394 + ... + 1402415.

It is an arithmetic number, because the mean of its divisors is an integer number (1702648290).

Almost surely, 2^12611894399 is an apocalyptic number.

12611894399 is a deficient number, since it is larger than the sum of its proper divisors (1009291921).

12611894399 is a wasteful number, since it uses less digits than its factorization.

12611894399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2796169.

The product of its digits is 839808, while the sum is 53.

The spelling of 12611894399 in words is "twelve billion, six hundred eleven million, eight hundred ninety-four thousand, three hundred ninety-nine".