20042631184 has 15 divisors (see below), whose sum is σ = 38833695133. Its totient is φ = 10021032448.

The previous prime is 20042631173. The next prime is 20042631187. The reversal of 20042631184 is 48113624002.

The square root of 20042631184 is 141572.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19931792400 + 110838784 = 141180^2 + 10528^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042631187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 548592 + ... + 583984.

Almost surely, 2^20042631184 is an apocalyptic number.

20042631184 is the 141572-nd square number.

It is an amenable number.

20042631184 is a deficient number, since it is larger than the sum of its proper divisors (18791063949).

20042631184 is an frugal number, since it uses more digits than its factorization.

20042631184 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70794 (or 35395 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

Multiplying 20042631184 by its product of nonzero digits (9216), we get a square (184712888991744 = 13590912²).

The spelling of 20042631184 in words is "twenty billion, forty-two million, six hundred thirty-one thousand, one hundred eighty-four".