81119682 has 48 divisors (see below), whose sum is σ = 212689152. Its totient is φ = 21813120.

The previous prime is 81119677. The next prime is 81119693. The reversal of 81119682 is 28691118.

It is a super-2 number, since 2×81119682² = 13160805615562248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16794 + ... + 21077.

It is an arithmetic number, because the mean of its divisors is an integer number (4431024).

Almost surely, 2^81119682 is an apocalyptic number.

81119682 is an abundant number, since it is smaller than the sum of its proper divisors (131569470).

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

81119682 is a wasteful number, since it uses less digits than its factorization.

81119682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37903 (or 37900 counting only the distinct ones).

The product of its digits is 6912, while the sum is 36.

The square root of 81119682 is about 9006.6465457461. The cubic root of 81119682 is about 432.8878666089.

The spelling of 81119682 in words is "eighty-one million, one hundred nineteen thousand, six hundred eighty-two".