6129885617 has 2 divisors, whose sum is σ = 6129885618. Its totient is φ = 6129885616.

The previous prime is 6129885599. The next prime is 6129885649. The reversal of 6129885617 is 7165889216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3630785536 + 2499100081 = 60256^2 + 49991^2 .

It is a cyclic number.

It is not a de Polignac number, because 6129885617 - 2¹⁸ = 6129623473 is a prime.

It is not a weakly prime, because it can be changed into another prime (6129885017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064942808 + 3064942809.

It is an arithmetic number, because the mean of its divisors is an integer number (3064942809).

Almost surely, 2^6129885617 is an apocalyptic number.

It is an amenable number.

6129885617 is a deficient number, since it is larger than the sum of its proper divisors (1).

6129885617 is an equidigital number, since it uses as much as digits as its factorization.

6129885617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 53.

The square root of 6129885617 is about 78293.5860527540. The cubic root of 6129885617 is about 1830.1392009932.

The spelling of 6129885617 in words is "six billion, one hundred twenty-nine million, eight hundred eighty-five thousand, six hundred seventeen".