5199658949 has 2 divisors, whose sum is σ = 5199658950. Its totient is φ = 5199658948.

The previous prime is 5199658931. The next prime is 5199658973. The reversal of 5199658949 is 9498569915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4823997025 + 375661924 = 69455^2 + 19382^2 .

It is a cyclic number.

It is not a de Polignac number, because 5199658949 - 2³² = 904691653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5199658999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2599829474 + 2599829475.

It is an arithmetic number, because the mean of its divisors is an integer number (2599829475).

Almost surely, 2^5199658949 is an apocalyptic number.

It is an amenable number.

5199658949 is a deficient number, since it is larger than the sum of its proper divisors (1).

5199658949 is an equidigital number, since it uses as much as digits as its factorization.

5199658949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31492800, while the sum is 65.

The square root of 5199658949 is about 72108.6607072965. The cubic root of 5199658949 is about 1732.4403339931.

The spelling of 5199658949 in words is "five billion, one hundred ninety-nine million, six hundred fifty-eight thousand, nine hundred forty-nine".