12615619207 has 2 divisors, whose sum is σ = 12615619208. Its totient is φ = 12615619206.

The previous prime is 12615619193. The next prime is 12615619217. The reversal of 12615619207 is 70291651621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12615619207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12615619207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12615619217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6307809603 + 6307809604.

It is an arithmetic number, because the mean of its divisors is an integer number (6307809604).

Almost surely, 2^12615619207 is an apocalyptic number.

12615619207 is a deficient number, since it is larger than the sum of its proper divisors (1).

12615619207 is an equidigital number, since it uses as much as digits as its factorization.

12615619207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 12615619207 in words is "twelve billion, six hundred fifteen million, six hundred nineteen thousand, two hundred seven".