20364326273 has 4 divisors (see below), whose sum is σ = 20408887620. Its totient is φ = 20319764928.

The previous prime is 20364326267. The next prime is 20364326291. The reversal of 20364326273 is 37262346302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8524274929 + 11840051344 = 92327^2 + 108812^2 .

It is a cyclic number.

It is not a de Polignac number, because 20364326273 - 2⁶ = 20364326209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20364326233) 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, 22279988 + ... + 22280901.

It is an arithmetic number, because the mean of its divisors is an integer number (5102221905).

Almost surely, 2^20364326273 is an apocalyptic number.

It is an amenable number.

20364326273 is a deficient number, since it is larger than the sum of its proper divisors (44561347).

20364326273 is an equidigital number, since it uses as much as digits as its factorization.

20364326273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44561346.

The product of its (nonzero) digits is 217728, while the sum is 38.

The spelling of 20364326273 in words is "twenty billion, three hundred sixty-four million, three hundred twenty-six thousand, two hundred seventy-three".