81874000086 has 32 divisors (see below), whose sum is σ = 164167181568. Its totient is φ = 27221520480.

The previous prime is 81874000073. The next prime is 81874000123. The reversal of 81874000086 is 68000047818.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 9160876 + ... + 9169808.

It is an arithmetic number, because the mean of its divisors is an integer number (5130224424).

Almost surely, 2^81874000086 is an apocalyptic number.

81874000086 is an abundant number, since it is smaller than the sum of its proper divisors (82293181482).

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

81874000086 is a wasteful number, since it uses less digits than its factorization.

81874000086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12676.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 81874000086 in words is "eighty-one billion, eight hundred seventy-four million, eighty-six", and thus it is an aban number.