225679934189 has 2 divisors, whose sum is σ = 225679934190. Its totient is φ = 225679934188.

The previous prime is 225679934113. The next prime is 225679934203. The reversal of 225679934189 is 981439976522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195946104964 + 29733829225 = 442658^2 + 172435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225679934189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (225679934089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112839967094 + 112839967095.

It is an arithmetic number, because the mean of its divisors is an integer number (112839967095).

Almost surely, 2^225679934189 is an apocalyptic number.

It is an amenable number.

225679934189 is a deficient number, since it is larger than the sum of its proper divisors (1).

225679934189 is an equidigital number, since it uses as much as digits as its factorization.

225679934189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58786560, while the sum is 65.

The spelling of 225679934189 in words is "two hundred twenty-five billion, six hundred seventy-nine million, nine hundred thirty-four thousand, one hundred eighty-nine".