6129323881 has 2 divisors, whose sum is σ = 6129323882. Its totient is φ = 6129323880.

The previous prime is 6129323869. The next prime is 6129323887. The reversal of 6129323881 is 1883239216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5914994281 + 214329600 = 76909^2 + 14640^2 .

It is a cyclic number.

It is not a de Polignac number, because 6129323881 - 2¹⁷ = 6129192809 is a prime.

It is a super-2 number, since 2×6129323881² = 75137222476393804322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6129323887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3064661940 + 3064661941.

It is an arithmetic number, because the mean of its divisors is an integer number (3064661941).

Almost surely, 2^6129323881 is an apocalyptic number.

It is an amenable number.

6129323881 is a deficient number, since it is larger than the sum of its proper divisors (1).

6129323881 is an equidigital number, since it uses as much as digits as its factorization.

6129323881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 6129323881 is about 78289.9986013539. The cubic root of 6129323881 is about 1830.0832953019.

The spelling of 6129323881 in words is "six billion, one hundred twenty-nine million, three hundred twenty-three thousand, eight hundred eighty-one".