20205273095 has 24 divisors (see below), whose sum is σ = 28698599904. Its totient is φ = 13377264768.

The previous prime is 20205273091. The next prime is 20205273133. The reversal of 20205273095 is 59037250202.

It is not a de Polignac number, because 20205273095 - 2² = 20205273091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20205273091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313784 + ... + 372653.

It is an arithmetic number, because the mean of its divisors is an integer number (1195774996).

Almost surely, 2^20205273095 is an apocalyptic number.

20205273095 is a deficient number, since it is larger than the sum of its proper divisors (8493326809).

20205273095 is an equidigital number, since it uses as much as digits as its factorization.

20205273095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686507 (or 686478 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 20205273095 in words is "twenty billion, two hundred five million, two hundred seventy-three thousand, ninety-five".