82385805887 has 16 divisors (see below), whose sum is σ = 102745780992. Its totient is φ = 64177350720.

The previous prime is 82385805883. The next prime is 82385805899. The reversal of 82385805887 is 78850858328.

It is not a de Polignac number, because 82385805887 - 2² = 82385805883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82385805883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97883 + ... + 417555.

It is an arithmetic number, because the mean of its divisors is an integer number (6421611312).

Almost surely, 2^82385805887 is an apocalyptic number.

82385805887 is a deficient number, since it is larger than the sum of its proper divisors (20359975105).

82385805887 is a wasteful number, since it uses less digits than its factorization.

82385805887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323038.

The product of its (nonzero) digits is 34406400, while the sum is 62.

The spelling of 82385805887 in words is "eighty-two billion, three hundred eighty-five million, eight hundred five thousand, eight hundred eighty-seven".