81022887333 has 8 divisors (see below), whose sum is σ = 120033907200. Its totient is φ = 54015258204.

The previous prime is 81022887311. The next prime is 81022887353. The reversal of 81022887333 is 33378822018.

81022887333 is a `hidden beast` number, since 8 + 10 + 228 + 87 + 333 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-81022887333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (81022887353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1500423813 + ... + 1500423866.

It is an arithmetic number, because the mean of its divisors is an integer number (15004238400).

Almost surely, 2^81022887333 is an apocalyptic number.

It is an amenable number.

81022887333 is a deficient number, since it is larger than the sum of its proper divisors (39011019867).

81022887333 is a wasteful number, since it uses less digits than its factorization.

81022887333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3000847688 (or 3000847682 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 81022887333 in words is "eighty-one billion, twenty-two million, eight hundred eighty-seven thousand, three hundred thirty-three".