84101121585863 has 2 divisors, whose sum is σ = 84101121585864. Its totient is φ = 84101121585862.

The previous prime is 84101121585853. The next prime is 84101121585911. The reversal of 84101121585863 is 36858512110148.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84101121585863 is a prime.

It is a super-2 number, since 2×84101121585863² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84101121585853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42050560792931 + 42050560792932.

It is an arithmetic number, because the mean of its divisors is an integer number (42050560792932).

Almost surely, 2^{84101121585863} is an apocalyptic number.

84101121585863 is a deficient number, since it is larger than the sum of its proper divisors (1).

84101121585863 is an equidigital number, since it uses as much as digits as its factorization.

84101121585863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1843200, while the sum is 53.

The spelling of 84101121585863 in words is "eighty-four trillion, one hundred one billion, one hundred twenty-one million, five hundred eighty-five thousand, eight hundred sixty-three".