180319681806 has 16 divisors (see below), whose sum is σ = 393424760448. Its totient is φ = 54642327800.

The previous prime is 180319681783. The next prime is 180319681831. The reversal of 180319681806 is 608186913081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1366058130 + ... + 1366058261.

It is an arithmetic number, because the mean of its divisors is an integer number (24589047528).

Almost surely, 2^180319681806 is an apocalyptic number.

180319681806 is an abundant number, since it is smaller than the sum of its proper divisors (213105078642).

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

180319681806 is a wasteful number, since it uses less digits than its factorization.

180319681806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732116407.

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 180319681806 in words is "one hundred eighty billion, three hundred nineteen million, six hundred eighty-one thousand, eight hundred six".