20472973273 has 16 divisors (see below), whose sum is σ = 20924366400. Its totient is φ = 20025339840.

The previous prime is 20472973259. The next prime is 20472973343. The reversal of 20472973273 is 37237927402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20472973273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20472973973) 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, 16657623 + ... + 16658851.

It is an arithmetic number, because the mean of its divisors is an integer number (1307772900).

Almost surely, 2^20472973273 is an apocalyptic number.

It is an amenable number.

20472973273 is a deficient number, since it is larger than the sum of its proper divisors (451393127).

20472973273 is a wasteful number, since it uses less digits than its factorization.

20472973273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472.

The product of its (nonzero) digits is 889056, while the sum is 46.

The spelling of 20472973273 in words is "twenty billion, four hundred seventy-two million, nine hundred seventy-three thousand, two hundred seventy-three".