20184306772 has 18 divisors (see below), whose sum is σ = 41089482042. Its totient is φ = 8650417104.

The previous prime is 20184306763. The next prime is 20184306797. The reversal of 20184306772 is 27760348102.

It can be written as a sum of positive squares in only one way, i.e., 19576487056 + 607819716 = 139916^2 + 24654^2 .

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 5 ways as a sum of consecutive naturals, for example, 51490383 + ... + 51490774.

Almost surely, 2^20184306772 is an apocalyptic number.

It is an amenable number.

20184306772 is an abundant number, since it is smaller than the sum of its proper divisors (20905175270).

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

20184306772 is a wasteful number, since it uses less digits than its factorization.

20184306772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102981175 (or 102981166 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

It can be divided in two parts, 2018430 and 6772, that added together give a palindrome (2025202).

The spelling of 20184306772 in words is "twenty billion, one hundred eighty-four million, three hundred six thousand, seven hundred seventy-two".