22745526173 has 4 divisors (see below), whose sum is σ = 22826471388. Its totient is φ = 22664580960.

The previous prime is 22745526161. The next prime is 22745526179. The reversal of 22745526173 is 37162554722.

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 12000545209 + 10744980964 = 109547^2 + 103658^2 .

It is a cyclic number.

It is not a de Polignac number, because 22745526173 - 2⁴ = 22745526157 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 (22745526179) 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, 40472186 + ... + 40472747.

It is an arithmetic number, because the mean of its divisors is an integer number (5706617847).

Almost surely, 2^22745526173 is an apocalyptic number.

It is an amenable number.

22745526173 is a deficient number, since it is larger than the sum of its proper divisors (80945215).

22745526173 is an equidigital number, since it uses as much as digits as its factorization.

22745526173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80945214.

The product of its digits is 705600, while the sum is 44.

The spelling of 22745526173 in words is "twenty-two billion, seven hundred forty-five million, five hundred twenty-six thousand, one hundred seventy-three".