82885407864 has 48 divisors (see below), whose sum is σ = 241044301800. Its totient is φ = 23681544768.

The previous prime is 82885407841. The next prime is 82885407887. The reversal of 82885407864 is 46870458828.

It is an interprime number because it is at equal distance from previous prime (82885407841) and next prime (82885407887).

It is a junction number, because it is equal to n+sod(n) for n = 82885407798 and 82885407807.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 35239219 + ... + 35241570.

Almost surely, 2^82885407864 is an apocalyptic number.

82885407864 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

82885407864 is an abundant number, since it is smaller than the sum of its proper divisors (158158893936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82885407864 is a wasteful number, since it uses less digits than its factorization.

82885407864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70480812 (or 70480801 counting only the distinct ones).

The product of its (nonzero) digits is 27525120, while the sum is 60.

The spelling of 82885407864 in words is "eighty-two billion, eight hundred eighty-five million, four hundred seven thousand, eight hundred sixty-four".