417868064681 has 4 divisors (see below), whose sum is σ = 442448539092. Its totient is φ = 393287590272.

The previous prime is 417868064657. The next prime is 417868064699. The reversal of 417868064681 is 186460868714.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 186460868714 = 2 ⋅93230434357.

It can be written as a sum of positive squares in 2 ways, for example, as 145091666281 + 272776398400 = 380909^2 + 522280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-417868064681 is a prime.

It is a super-2 number, since 2×417868064681² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 417868064681.

It is not an unprimeable number, because it can be changed into a prime (417868064651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12290237180 + ... + 12290237213.

It is an arithmetic number, because the mean of its divisors is an integer number (110612134773).

Almost surely, 2^417868064681 is an apocalyptic number.

It is an amenable number.

417868064681 is a deficient number, since it is larger than the sum of its proper divisors (24580474411).

417868064681 is a wasteful number, since it uses less digits than its factorization.

417868064681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24580474410.

The product of its (nonzero) digits is 12386304, while the sum is 59.

The spelling of 417868064681 in words is "four hundred seventeen billion, eight hundred sixty-eight million, sixty-four thousand, six hundred eighty-one".