12849990847 has 2 divisors, whose sum is σ = 12849990848. Its totient is φ = 12849990846.

The previous prime is 12849990817. The next prime is 12849990859. The reversal of 12849990847 is 74809994821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12849990847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12849990817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6424995423 + 6424995424.

It is an arithmetic number, because the mean of its divisors is an integer number (6424995424).

Almost surely, 2^12849990847 is an apocalyptic number.

12849990847 is a deficient number, since it is larger than the sum of its proper divisors (1).

12849990847 is an equidigital number, since it uses as much as digits as its factorization.

12849990847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 61.

The spelling of 12849990847 in words is "twelve billion, eight hundred forty-nine million, nine hundred ninety thousand, eight hundred forty-seven".