63335413217 has 2 divisors, whose sum is σ = 63335413218. Its totient is φ = 63335413216.

The previous prime is 63335413213. The next prime is 63335413261. The reversal of 63335413217 is 71231453336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43972412416 + 19363000801 = 209696^2 + 139151^2 .

It is a cyclic number.

It is not a de Polignac number, because 63335413217 - 2² = 63335413213 is a prime.

It is a super-2 number, since 2×63335413217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63335413213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31667706608 + 31667706609.

It is an arithmetic number, because the mean of its divisors is an integer number (31667706609).

Almost surely, 2^63335413217 is an apocalyptic number.

It is an amenable number.

63335413217 is a deficient number, since it is larger than the sum of its proper divisors (1).

63335413217 is an equidigital number, since it uses as much as digits as its factorization.

63335413217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 38.

The spelling of 63335413217 in words is "sixty-three billion, three hundred thirty-five million, four hundred thirteen thousand, two hundred seventeen".