81038382082 has 16 divisors (see below), whose sum is σ = 139323303360. Its totient is φ = 34630644528.

The previous prime is 81038382059. The next prime is 81038382107. The reversal of 81038382082 is 28028383018.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8335857 + ... + 8345572.

It is an arithmetic number, because the mean of its divisors is an integer number (8707706460).

Almost surely, 2^81038382082 is an apocalyptic number.

81038382082 is a deficient number, since it is larger than the sum of its proper divisors (58284921278).

81038382082 is a wasteful number, since it uses less digits than its factorization.

81038382082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16681785.

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 81038382082 in words is "eighty-one billion, thirty-eight million, three hundred eighty-two thousand, eighty-two".