20073867584 has 28 divisors (see below), whose sum is σ = 39921303444. Its totient is φ = 10014956544.

The previous prime is 20073867581. The next prime is 20073867587. The reversal of 20073867584 is 48576837002.

It is an interprime number because it is at equal distance from previous prime (20073867581) and next prime (20073867587).

It can be written as a sum of positive squares in 2 ways, for example, as 14478827584 + 5595040000 = 120328^2 + 74800^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20073867581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313919 + ... + 372414.

Almost surely, 2^20073867584 is an apocalyptic number.

It is an amenable number.

20073867584 is a deficient number, since it is larger than the sum of its proper divisors (19847435860).

20073867584 is an equidigital number, since it uses as much as digits as its factorization.

20073867584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686802 (or 686792 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 20073867584 in words is "twenty billion, seventy-three million, eight hundred sixty-seven thousand, five hundred eighty-four".