81014806174 has 16 divisors (see below), whose sum is σ = 125926844400. Its totient is φ = 39043951744.

The previous prime is 81014806151. The next prime is 81014806183. The reversal of 81014806174 is 47160841018.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155739 + ... + 1223830.

It is an arithmetic number, because the mean of its divisors is an integer number (7870427775).

Almost surely, 2^81014806174 is an apocalyptic number.

81014806174 is a deficient number, since it is larger than the sum of its proper divisors (44912038226).

81014806174 is a wasteful number, since it uses less digits than its factorization.

81014806174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380187.

The product of its (nonzero) digits is 43008, while the sum is 40.

The spelling of 81014806174 in words is "eighty-one billion, fourteen million, eight hundred six thousand, one hundred seventy-four".