82581215159 has 2 divisors, whose sum is σ = 82581215160. Its totient is φ = 82581215158.

The previous prime is 82581215149. The next prime is 82581215257. The reversal of 82581215159 is 95151218528.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82581215159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82581215149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41290607579 + 41290607580.

It is an arithmetic number, because the mean of its divisors is an integer number (41290607580).

Almost surely, 2^82581215159 is an apocalyptic number.

82581215159 is a deficient number, since it is larger than the sum of its proper divisors (1).

82581215159 is an equidigital number, since it uses as much as digits as its factorization.

82581215159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 47.

The spelling of 82581215159 in words is "eighty-two billion, five hundred eighty-one million, two hundred fifteen thousand, one hundred fifty-nine".