63315309401 has 2 divisors, whose sum is σ = 63315309402. Its totient is φ = 63315309400.

The previous prime is 63315309367. The next prime is 63315309413. The reversal of 63315309401 is 10490351336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41485542400 + 21829767001 = 203680^2 + 147749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63315309401 is a prime.

It is not a weakly prime, because it can be changed into another prime (63315306401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31657654700 + 31657654701.

It is an arithmetic number, because the mean of its divisors is an integer number (31657654701).

Almost surely, 2^63315309401 is an apocalyptic number.

It is an amenable number.

63315309401 is a deficient number, since it is larger than the sum of its proper divisors (1).

63315309401 is an equidigital number, since it uses as much as digits as its factorization.

63315309401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 35.

The spelling of 63315309401 in words is "sixty-three billion, three hundred fifteen million, three hundred nine thousand, four hundred one".