63368646217 has 8 divisors (see below), whose sum is σ = 64975449672. Its totient is φ = 61764758400.

The previous prime is 63368646203. The next prime is 63368646223. The reversal of 63368646217 is 71264686336.

It can be written as a sum of positive squares in 4 ways, for example, as 1130371641 + 62238274576 = 33621^2 + 249476^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63368646217 - 2²⁷ = 63234428489 is a prime.

It is a super-2 number, since 2×63368646217² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63368646017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684858 + ... + 771859.

It is an arithmetic number, because the mean of its divisors is an integer number (8121931209).

Almost surely, 2^63368646217 is an apocalyptic number.

It is an amenable number.

63368646217 is a deficient number, since it is larger than the sum of its proper divisors (1606803455).

63368646217 is a wasteful number, since it uses less digits than its factorization.

63368646217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457819.

The product of its digits is 5225472, while the sum is 52.

The spelling of 63368646217 in words is "sixty-three billion, three hundred sixty-eight million, six hundred forty-six thousand, two hundred seventeen".