6342464581 has 2 divisors, whose sum is σ = 6342464582. Its totient is φ = 6342464580.

The previous prime is 6342464551. The next prime is 6342464591. The reversal of 6342464581 is 1854642436.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5105817025 + 1236647556 = 71455^2 + 35166^2 .

It is a cyclic number.

It is not a de Polignac number, because 6342464581 - 2⁵ = 6342464549 is a prime.

It is a super-2 number, since 2×6342464581² = 80453713922479011122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6342464501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3171232290 + 3171232291.

It is an arithmetic number, because the mean of its divisors is an integer number (3171232291).

Almost surely, 2^6342464581 is an apocalyptic number.

It is an amenable number.

6342464581 is a deficient number, since it is larger than the sum of its proper divisors (1).

6342464581 is an equidigital number, since it uses as much as digits as its factorization.

6342464581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 43.

The square root of 6342464581 is about 79639.5917932783. The cubic root of 6342464581 is about 1851.0551157712.

The spelling of 6342464581 in words is "six billion, three hundred forty-two million, four hundred sixty-four thousand, five hundred eighty-one".