6129798557 has 2 divisors, whose sum is σ = 6129798558. Its totient is φ = 6129798556.

The previous prime is 6129798529. The next prime is 6129798583. The reversal of 6129798557 is 7558979216.

6129798557 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4117917241 + 2011881316 = 64171^2 + 44854^2 .

It is a cyclic number.

It is not a de Polignac number, because 6129798557 - 2¹⁶ = 6129733021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6129798496 and 6129798505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6129798457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064899278 + 3064899279.

It is an arithmetic number, because the mean of its divisors is an integer number (3064899279).

Almost surely, 2^6129798557 is an apocalyptic number.

It is an amenable number.

6129798557 is a deficient number, since it is larger than the sum of its proper divisors (1).

6129798557 is an equidigital number, since it uses as much as digits as its factorization.

6129798557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9525600, while the sum is 59.

The square root of 6129798557 is about 78293.0300665391. The cubic root of 6129798557 is about 1830.1305367383.

The spelling of 6129798557 in words is "six billion, one hundred twenty-nine million, seven hundred ninety-eight thousand, five hundred fifty-seven".