84118240259 has 2 divisors, whose sum is σ = 84118240260. Its totient is φ = 84118240258.

The previous prime is 84118240249. The next prime is 84118240309. The reversal of 84118240259 is 95204281148.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84118240259 is a prime.

It is not a weakly prime, because it can be changed into another prime (84118240249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42059120129 + 42059120130.

It is an arithmetic number, because the mean of its divisors is an integer number (42059120130).

Almost surely, 2^84118240259 is an apocalyptic number.

84118240259 is a deficient number, since it is larger than the sum of its proper divisors (1).

84118240259 is an equidigital number, since it uses as much as digits as its factorization.

84118240259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 44.

The spelling of 84118240259 in words is "eighty-four billion, one hundred eighteen million, two hundred forty thousand, two hundred fifty-nine".