1247914644199 has 2 divisors, whose sum is σ = 1247914644200. Its totient is φ = 1247914644198.

The previous prime is 1247914644161. The next prime is 1247914644203. The reversal of 1247914644199 is 9914464197421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1247914644199 - 2²⁹ = 1247377773287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1247914644149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623957322099 + 623957322100.

It is an arithmetic number, because the mean of its divisors is an integer number (623957322100).

Almost surely, 2^{1247914644199} is an apocalyptic number.

1247914644199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1247914644199 is an equidigital number, since it uses as much as digits as its factorization.

1247914644199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 61.

The spelling of 1247914644199 in words is "one trillion, two hundred forty-seven billion, nine hundred fourteen million, six hundred forty-four thousand, one hundred ninety-nine".