81823030335 has 32 divisors (see below), whose sum is σ = 146573602560. Its totient is φ = 43305818400.

The previous prime is 81823030307. The next prime is 81823030351. The reversal of 81823030335 is 53303032818.

81823030335 is a `hidden beast` number, since 8 + 18 + 2 + 303 + 0 + 335 = 666.

It is not a de Polignac number, because 81823030335 - 2¹⁸ = 81822768191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 81823030335.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2295661 + ... + 2331030.

It is an arithmetic number, because the mean of its divisors is an integer number (4580425080).

Almost surely, 2^81823030335 is an apocalyptic number.

81823030335 is a deficient number, since it is larger than the sum of its proper divisors (64750572225).

81823030335 is a wasteful number, since it uses less digits than its factorization.

81823030335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4626836 (or 4626830 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 81823030335 in words is "eighty-one billion, eight hundred twenty-three million, thirty thousand, three hundred thirty-five".