20187859094273 has 16 divisors (see below), whose sum is σ = 21771211310016. Its totient is φ = 18608870301120.

The previous prime is 20187859094261. The next prime is 20187859094353. The reversal of 20187859094273 is 37249095878102.

It is a cyclic number.

It is not a de Polignac number, because 20187859094273 - 2¹⁶ = 20187859028737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20187855094273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32496590 + ... + 33111992.

It is an arithmetic number, because the mean of its divisors is an integer number (1360700706876).

Almost surely, 2^{20187859094273} is an apocalyptic number.

It is an amenable number.

20187859094273 is a deficient number, since it is larger than the sum of its proper divisors (1583352215743).

20187859094273 is a wasteful number, since it uses less digits than its factorization.

20187859094273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618944.

The product of its (nonzero) digits is 60963840, while the sum is 65.

The spelling of 20187859094273 in words is "twenty trillion, one hundred eighty-seven billion, eight hundred fifty-nine million, ninety-four thousand, two hundred seventy-three".