82643044681674 has 12 divisors (see below), whose sum is σ = 179059930143666. Its totient is φ = 27547681560552.

The previous prime is 82643044681667. The next prime is 82643044681693. The reversal of 82643044681674 is 47618644034628.

82643044681674 is a `hidden beast` number, since 8 + 2 + 6 + 4 + 3 + 0 + 4 + 468 + 167 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70071715683225 + 12571328998449 = 8370885^2 + 3545607^2 .

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 5 ways as a sum of consecutive naturals, for example, 2295640130029 + ... + 2295640130064.

Almost surely, 2^{82643044681674} is an apocalyptic number.

82643044681674 is an abundant number, since it is smaller than the sum of its proper divisors (96416885461992).

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

82643044681674 is a wasteful number, since it uses less digits than its factorization.

82643044681674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591280260101 (or 4591280260098 counting only the distinct ones).

The product of its (nonzero) digits is 148635648, while the sum is 63.

The spelling of 82643044681674 in words is "eighty-two trillion, six hundred forty-three billion, forty-four million, six hundred eighty-one thousand, six hundred seventy-four".