12611719999 has 8 divisors (see below), whose sum is σ = 12629901312. Its totient is φ = 12593554680.

The previous prime is 12611719997. The next prime is 12611720021. The reversal of 12611719999 is 99991711621.

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 12611719999 - 2¹ = 12611719997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12611719997) 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, 2679282 + ... + 2683984.

It is an arithmetic number, because the mean of its divisors is an integer number (1578737664).

Almost surely, 2^12611719999 is an apocalyptic number.

12611719999 is a deficient number, since it is larger than the sum of its proper divisors (18181313).

12611719999 is a wasteful number, since it uses less digits than its factorization.

12611719999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7997.

The product of its digits is 551124, while the sum is 55.

The spelling of 12611719999 in words is "twelve billion, six hundred eleven million, seven hundred nineteen thousand, nine hundred ninety-nine".