6356622641 has 2 divisors, whose sum is σ = 6356622642. Its totient is φ = 6356622640.

The previous prime is 6356622551. The next prime is 6356622683. The reversal of 6356622641 is 1462266536.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6352090000 + 4532641 = 79700^2 + 2129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6356622641 is a prime.

It is not a weakly prime, because it can be changed into another prime (6356222641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3178311320 + 3178311321.

It is an arithmetic number, because the mean of its divisors is an integer number (3178311321).

Almost surely, 2^6356622641 is an apocalyptic number.

It is an amenable number.

6356622641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6356622641 is an equidigital number, since it uses as much as digits as its factorization.

6356622641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 41.

The square root of 6356622641 is about 79728.4305690260. The cubic root of 6356622641 is about 1852.4314405224.

The spelling of 6356622641 in words is "six billion, three hundred fifty-six million, six hundred twenty-two thousand, six hundred forty-one".