6429923161 has 2 divisors, whose sum is σ = 6429923162. Its totient is φ = 6429923160.

The previous prime is 6429923153. The next prime is 6429923167. The reversal of 6429923161 is 1613299246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4783105600 + 1646817561 = 69160^2 + 40581^2 .

It is a cyclic number.

It is not a de Polignac number, because 6429923161 - 2³ = 6429923153 is a prime.

It is not a weakly prime, because it can be changed into another prime (6429923167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214961580 + 3214961581.

It is an arithmetic number, because the mean of its divisors is an integer number (3214961581).

Almost surely, 2^6429923161 is an apocalyptic number.

It is an amenable number.

6429923161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6429923161 is an equidigital number, since it uses as much as digits as its factorization.

6429923161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 6429923161 is about 80186.8016633660. The cubic root of 6429923161 is about 1859.5245982184.

The spelling of 6429923161 in words is "six billion, four hundred twenty-nine million, nine hundred twenty-three thousand, one hundred sixty-one".