6351864401 has 2 divisors, whose sum is σ = 6351864402. Its totient is φ = 6351864400.

The previous prime is 6351864353. The next prime is 6351864427. The reversal of 6351864401 is 1044681536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6340140625 + 11723776 = 79625^2 + 3424^2 .

It is a cyclic number.

It is not a de Polignac number, because 6351864401 - 2²² = 6347670097 is a prime.

It is not a weakly prime, because it can be changed into another prime (6351864601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3175932200 + 3175932201.

It is an arithmetic number, because the mean of its divisors is an integer number (3175932201).

Almost surely, 2^6351864401 is an apocalyptic number.

It is an amenable number.

6351864401 is a deficient number, since it is larger than the sum of its proper divisors (1).

6351864401 is an equidigital number, since it uses as much as digits as its factorization.

6351864401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 6351864401 is about 79698.5846863042. The cubic root of 6351864401 is about 1851.9691135864.

The spelling of 6351864401 in words is "six billion, three hundred fifty-one million, eight hundred sixty-four thousand, four hundred one".