6129768949 has 2 divisors, whose sum is σ = 6129768950. Its totient is φ = 6129768948.

The previous prime is 6129768913. The next prime is 6129768971. The reversal of 6129768949 is 9498679216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5378022225 + 751746724 = 73335^2 + 27418^2 .

It is a cyclic number.

It is not a de Polignac number, because 6129768949 - 2¹¹ = 6129766901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6129768989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064884474 + 3064884475.

It is an arithmetic number, because the mean of its divisors is an integer number (3064884475).

Almost surely, 2^6129768949 is an apocalyptic number.

It is an amenable number.

6129768949 is a deficient number, since it is larger than the sum of its proper divisors (1).

6129768949 is an equidigital number, since it uses as much as digits as its factorization.

6129768949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11757312, while the sum is 61.

The square root of 6129768949 is about 78292.8409817909. The cubic root of 6129768949 is about 1830.1275901166.

The spelling of 6129768949 in words is "six billion, one hundred twenty-nine million, seven hundred sixty-eight thousand, nine hundred forty-nine".