12610451999 has 4 divisors (see below), whose sum is σ = 12951275064. Its totient is φ = 12269628936.

The previous prime is 12610451989. The next prime is 12610452013. The reversal of 12610451999 is 99915401621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12610451999 - 2²⁰ = 12609403423 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 (12610451969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170411477 + ... + 170411550.

It is an arithmetic number, because the mean of its divisors is an integer number (3237818766).

Almost surely, 2^12610451999 is an apocalyptic number.

12610451999 is a deficient number, since it is larger than the sum of its proper divisors (340823065).

12610451999 is an equidigital number, since it uses as much as digits as its factorization.

12610451999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340823064.

The product of its (nonzero) digits is 174960, while the sum is 47.

The spelling of 12610451999 in words is "twelve billion, six hundred ten million, four hundred fifty-one thousand, nine hundred ninety-nine".