864417841541 has 2 divisors, whose sum is σ = 864417841542. Its totient is φ = 864417841540.

The previous prime is 864417841537. The next prime is 864417841589. The reversal of 864417841541 is 145148714468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 577501204225 + 286916637316 = 759935^2 + 535646^2 .

It is a cyclic number.

It is not a de Polignac number, because 864417841541 - 2² = 864417841537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864417841501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432208920770 + 432208920771.

It is an arithmetic number, because the mean of its divisors is an integer number (432208920771).

Almost surely, 2^864417841541 is an apocalyptic number.

It is an amenable number.

864417841541 is a deficient number, since it is larger than the sum of its proper divisors (1).

864417841541 is an equidigital number, since it uses as much as digits as its factorization.

864417841541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3440640, while the sum is 53.

The spelling of 864417841541 in words is "eight hundred sixty-four billion, four hundred seventeen million, eight hundred forty-one thousand, five hundred forty-one".