22347328573 has 4 divisors (see below), whose sum is σ = 23117926140. Its totient is φ = 21576731008.

The previous prime is 22347328501. The next prime is 22347328603. The reversal of 22347328573 is 37582374322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37582374322 = 2 ⋅18791187161.

It can be written as a sum of positive squares in 2 ways, for example, as 11150937604 + 11196390969 = 105598^2 + 105813^2 .

It is a cyclic number.

It is not a de Polignac number, because 22347328573 - 2²¹ = 22345231421 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 (22347322573) 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, 385298740 + ... + 385298797.

It is an arithmetic number, because the mean of its divisors is an integer number (5779481535).

Almost surely, 2^22347328573 is an apocalyptic number.

It is an amenable number.

22347328573 is a deficient number, since it is larger than the sum of its proper divisors (770597567).

22347328573 is an equidigital number, since it uses as much as digits as its factorization.

22347328573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770597566.

The product of its digits is 1693440, while the sum is 46.

The spelling of 22347328573 in words is "twenty-two billion, three hundred forty-seven million, three hundred twenty-eight thousand, five hundred seventy-three".