81835832110 has 32 divisors (see below), whose sum is σ = 149752566432. Its totient is φ = 32191948800.

The previous prime is 81835832077. The next prime is 81835832147. The reversal of 81835832110 is 1123853818.

It is a super-2 number, since 2×81835832110² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301054 + ... + 504286.

It is an arithmetic number, because the mean of its divisors is an integer number (4679767701).

Almost surely, 2^81835832110 is an apocalyptic number.

81835832110 is a deficient number, since it is larger than the sum of its proper divisors (67916734322).

81835832110 is a wasteful number, since it uses less digits than its factorization.

81835832110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203908.

The product of its (nonzero) digits is 46080, while the sum is 40.

The spelling of 81835832110 in words is "eighty-one billion, eight hundred thirty-five million, eight hundred thirty-two thousand, one hundred ten".