417212719681 has 2 divisors, whose sum is σ = 417212719682. Its totient is φ = 417212719680.

The previous prime is 417212719673. The next prime is 417212719691. The reversal of 417212719681 is 186917212714.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351056250000 + 66156469681 = 592500^2 + 257209^2 .

It is a cyclic number.

It is not a de Polignac number, because 417212719681 - 2³ = 417212719673 is a prime.

It is a super-2 number, since 2×417212719681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (417212719691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 208606359840 + 208606359841.

It is an arithmetic number, because the mean of its divisors is an integer number (208606359841).

Almost surely, 2^417212719681 is an apocalyptic number.

It is an amenable number.

417212719681 is a deficient number, since it is larger than the sum of its proper divisors (1).

417212719681 is an equidigital number, since it uses as much as digits as its factorization.

417212719681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 49.

The spelling of 417212719681 in words is "four hundred seventeen billion, two hundred twelve million, seven hundred nineteen thousand, six hundred eighty-one".