82885510881 has 12 divisors (see below), whose sum is σ = 119759075280. Its totient is φ = 55240595160.

The previous prime is 82885510847. The next prime is 82885510889. The reversal of 82885510881 is 18801558828.

It is a happy number.

82885510881 is a `hidden beast` number, since 8 + 2 + 8 + 8 + 551 + 0 + 8 + 81 = 666.

It is not a de Polignac number, because 82885510881 - 2¹⁵ = 82885478113 is a prime.

It is a super-2 number, since 2×82885510881² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82885510889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1335651 + ... + 1396328.

It is an arithmetic number, because the mean of its divisors is an integer number (9979922940).

Almost surely, 2^82885510881 is an apocalyptic number.

It is an amenable number.

82885510881 is a deficient number, since it is larger than the sum of its proper divisors (36873564399).

82885510881 is a wasteful number, since it uses less digits than its factorization.

82885510881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735356 (or 2735353 counting only the distinct ones).

The product of its (nonzero) digits is 1638400, while the sum is 54.

The spelling of 82885510881 in words is "eighty-two billion, eight hundred eighty-five million, five hundred ten thousand, eight hundred eighty-one".