6149427749 has 2 divisors, whose sum is σ = 6149427750. Its totient is φ = 6149427748.

The previous prime is 6149427743. The next prime is 6149427827. The reversal of 6149427749 is 9477249416.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6148912225 + 515524 = 78415^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 6149427749 - 2⁴ = 6149427733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6149427749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6149427743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3074713874 + 3074713875.

It is an arithmetic number, because the mean of its divisors is an integer number (3074713875).

Almost surely, 2^6149427749 is an apocalyptic number.

It is an amenable number.

6149427749 is a deficient number, since it is larger than the sum of its proper divisors (1).

6149427749 is an equidigital number, since it uses as much as digits as its factorization.

6149427749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3048192, while the sum is 53.

The square root of 6149427749 is about 78418.2870827972. The cubic root of 6149427749 is about 1832.0819714924.

The spelling of 6149427749 in words is "six billion, one hundred forty-nine million, four hundred twenty-seven thousand, seven hundred forty-nine".