81114474006 has 16 divisors (see below), whose sum is σ = 180254386800. Its totient is φ = 27038157984.

The previous prime is 81114473959. The next prime is 81114474011. The reversal of 81114474006 is 60047441118.

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 7 ways as a sum of consecutive naturals, for example, 751059891 + ... + 751059998.

It is an arithmetic number, because the mean of its divisors is an integer number (11265899175).

Almost surely, 2^81114474006 is an apocalyptic number.

81114474006 is an abundant number, since it is smaller than the sum of its proper divisors (99139912794).

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

81114474006 is a wasteful number, since it uses less digits than its factorization.

81114474006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502119900 (or 1502119894 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 81114474006 in words is "eighty-one billion, one hundred fourteen million, four hundred seventy-four thousand, six".