20473204073 has 4 divisors (see below), whose sum is σ = 23397947520. Its totient is φ = 17548460628.

The previous prime is 20473204069. The next prime is 20473204093. The reversal of 20473204073 is 37040237402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20473204073 - 2² = 20473204069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20473204093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1462371713 + ... + 1462371726.

It is an arithmetic number, because the mean of its divisors is an integer number (5849486880).

Almost surely, 2^20473204073 is an apocalyptic number.

It is an amenable number.

20473204073 is a deficient number, since it is larger than the sum of its proper divisors (2924743447).

20473204073 is an equidigital number, since it uses as much as digits as its factorization.

20473204073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924743446.

The product of its (nonzero) digits is 28224, while the sum is 32.

The spelling of 20473204073 in words is "twenty billion, four hundred seventy-three million, two hundred four thousand, seventy-three".