225636438343679 has 8 divisors (see below), whose sum is σ = 246148967101440. Its totient is φ = 205123930464600.

The previous prime is 225636438343663. The next prime is 225636438343699. The reversal of 225636438343679 is 976343834636522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 225636438343679 - 2⁴ = 225636438343663 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 (225636438343699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24967364 + ... + 32781734.

It is an arithmetic number, because the mean of its divisors is an integer number (30768620887680).

Almost surely, 2^{225636438343679} is an apocalyptic number.

225636438343679 is a deficient number, since it is larger than the sum of its proper divisors (20512528757761).

225636438343679 is a wasteful number, since it uses less digits than its factorization.

225636438343679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10439341.

The product of its digits is 2821754880, while the sum is 71.

The spelling of 225636438343679 in words is "two hundred twenty-five trillion, six hundred thirty-six billion, four hundred thirty-eight million, three hundred forty-three thousand, six hundred seventy-nine".