6461222039 has 2 divisors, whose sum is σ = 6461222040. Its totient is φ = 6461222038.

The previous prime is 6461221981. The next prime is 6461222063. The reversal of 6461222039 is 9302221646.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6461222039 - 2⁸ = 6461221783 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6461222839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3230611019 + 3230611020.

It is an arithmetic number, because the mean of its divisors is an integer number (3230611020).

Almost surely, 2^6461222039 is an apocalyptic number.

6461222039 is a deficient number, since it is larger than the sum of its proper divisors (1).

6461222039 is an equidigital number, since it uses as much as digits as its factorization.

6461222039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 6461222039 is about 80381.7270217554. The cubic root of 6461222039 is about 1862.5369127648.

The spelling of 6461222039 in words is "six billion, four hundred sixty-one million, two hundred twenty-two thousand, thirty-nine".