8226194879644 has 36 divisors (see below), whose sum is σ = 16787126808480. Its totient is φ = 3516892223040.

The previous prime is 8226194879561. The next prime is 8226194879647. The reversal of 8226194879644 is 4469784916228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8226194879647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51228372 + ... + 51388699.

Almost surely, 2^{8226194879644} is an apocalyptic number.

It is an amenable number.

8226194879644 is an abundant number, since it is smaller than the sum of its proper divisors (8560931928836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8226194879644 is a wasteful number, since it uses less digits than its factorization.

8226194879644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102617498 (or 102617489 counting only the distinct ones).

The product of its digits is 334430208, while the sum is 70.

The spelling of 8226194879644 in words is "eight trillion, two hundred twenty-six billion, one hundred ninety-four million, eight hundred seventy-nine thousand, six hundred forty-four".