63633327061 has 2 divisors, whose sum is σ = 63633327062. Its totient is φ = 63633327060.

The previous prime is 63633326989. The next prime is 63633327071. The reversal of 63633327061 is 16072333636.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62203352836 + 1429974225 = 249406^2 + 37815^2 .

It is a cyclic number.

It is not a de Polignac number, because 63633327061 - 2¹⁵ = 63633294293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63633327071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31816663530 + 31816663531.

It is an arithmetic number, because the mean of its divisors is an integer number (31816663531).

Almost surely, 2^63633327061 is an apocalyptic number.

It is an amenable number.

63633327061 is a deficient number, since it is larger than the sum of its proper divisors (1).

63633327061 is an equidigital number, since it uses as much as digits as its factorization.

63633327061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 40.

The spelling of 63633327061 in words is "sixty-three billion, six hundred thirty-three million, three hundred twenty-seven thousand, sixty-one".