20605873473 has 16 divisors (see below), whose sum is σ = 30529545600. Its totient is φ = 13736202480.

The previous prime is 20605873459. The next prime is 20605873481. The reversal of 20605873473 is 37437850602.

20605873473 is a `hidden beast` number, since 2 + 0 + 60 + 58 + 73 + 473 = 666.

It is not a de Polignac number, because 20605873473 - 2⁹ = 20605872961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20605873423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 521508 + ... + 559626.

It is an arithmetic number, because the mean of its divisors is an integer number (1908096600).

Almost surely, 2^20605873473 is an apocalyptic number.

It is an amenable number.

20605873473 is a deficient number, since it is larger than the sum of its proper divisors (9923672127).

20605873473 is a wasteful number, since it uses less digits than its factorization.

20605873473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58149 (or 58143 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 20605873473 in words is "twenty billion, six hundred five million, eight hundred seventy-three thousand, four hundred seventy-three".