6432307081 has 2 divisors, whose sum is σ = 6432307082. Its totient is φ = 6432307080.

The previous prime is 6432307067. The next prime is 6432307157. The reversal of 6432307081 is 1807032346.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3698585856 + 2733721225 = 60816^2 + 52285^2 .

It is a cyclic number.

It is not a de Polignac number, because 6432307081 - 2¹⁵ = 6432274313 is a prime.

It is a super-2 number, since 2×6432307081² = 82749148768565481122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6432307001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3216153540 + 3216153541.

It is an arithmetic number, because the mean of its divisors is an integer number (3216153541).

Almost surely, 2^6432307081 is an apocalyptic number.

It is an amenable number.

6432307081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6432307081 is an equidigital number, since it uses as much as digits as its factorization.

6432307081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 6432307081 is about 80201.6650762314. The cubic root of 6432307081 is about 1859.7543785769.

The spelling of 6432307081 in words is "six billion, four hundred thirty-two million, three hundred seven thousand, eighty-one".