6126663997 has 2 divisors, whose sum is σ = 6126663998. Its totient is φ = 6126663996.

The previous prime is 6126663973. The next prime is 6126664001. The reversal of 6126663997 is 7993666216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5998657401 + 128006596 = 77451^2 + 11314^2 .

It is a cyclic number.

It is not a de Polignac number, because 6126663997 - 2¹⁹ = 6126139709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6126663947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3063331998 + 3063331999.

It is an arithmetic number, because the mean of its divisors is an integer number (3063331999).

Almost surely, 2^6126663997 is an apocalyptic number.

It is an amenable number.

6126663997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6126663997 is an equidigital number, since it uses as much as digits as its factorization.

6126663997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4408992, while the sum is 55.

The square root of 6126663997 is about 78273.0093774348. The cubic root of 6126663997 is about 1829.8185290902.

The spelling of 6126663997 in words is "six billion, one hundred twenty-six million, six hundred sixty-three thousand, nine hundred ninety-seven".