20430573044773 has 4 divisors (see below), whose sum is σ = 20442267707680. Its totient is φ = 20418878381868.

The previous prime is 20430573044741. The next prime is 20430573044779. The reversal of 20430573044773 is 37744037503402.

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 20430573044773 - 2⁵ = 20430573044741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430573044779) 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, 5847328833 + ... + 5847332326.

It is an arithmetic number, because the mean of its divisors is an integer number (5110566926920).

Almost surely, 2^{20430573044773} is an apocalyptic number.

It is an amenable number.

20430573044773 is a deficient number, since it is larger than the sum of its proper divisors (11694662907).

20430573044773 is a wasteful number, since it uses less digits than its factorization.

20430573044773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11694662906.

The product of its (nonzero) digits is 5927040, while the sum is 49.

The spelling of 20430573044773 in words is "twenty trillion, four hundred thirty billion, five hundred seventy-three million, forty-four thousand, seven hundred seventy-three".