7799449913 has 2 divisors, whose sum is σ = 7799449914. Its totient is φ = 7799449912.

The previous prime is 7799449901. The next prime is 7799449939. The reversal of 7799449913 is 3199449977.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7630371904 + 169078009 = 87352^2 + 13003^2 .

It is a cyclic number.

It is not a de Polignac number, because 7799449913 - 2⁸ = 7799449657 is a prime.

It is not a weakly prime, because it can be changed into another prime (7799449993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899724956 + 3899724957.

It is an arithmetic number, because the mean of its divisors is an integer number (3899724957).

Almost surely, 2^7799449913 is an apocalyptic number.

It is an amenable number.

7799449913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7799449913 is an equidigital number, since it uses as much as digits as its factorization.

7799449913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15431472, while the sum is 62.

The square root of 7799449913 is about 88314.4943539847. The cubic root of 7799449913 is about 1983.1458607128.

The spelling of 7799449913 in words is "seven billion, seven hundred ninety-nine million, four hundred forty-nine thousand, nine hundred thirteen".