82441697887 has 2 divisors, whose sum is σ = 82441697888. Its totient is φ = 82441697886.

The previous prime is 82441697861. The next prime is 82441697929. The reversal of 82441697887 is 78879614428.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82441697887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82441697837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41220848943 + 41220848944.

It is an arithmetic number, because the mean of its divisors is an integer number (41220848944).

Almost surely, 2^82441697887 is an apocalyptic number.

82441697887 is a deficient number, since it is larger than the sum of its proper divisors (1).

82441697887 is an equidigital number, since it uses as much as digits as its factorization.

82441697887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43352064, while the sum is 64.

The spelling of 82441697887 in words is "eighty-two billion, four hundred forty-one million, six hundred ninety-seven thousand, eight hundred eighty-seven".