8742561226 has 16 divisors (see below), whose sum is σ = 15051576384. Its totient is φ = 3730729824.

The previous prime is 8742561187. The next prime is 8742561239. The reversal of 8742561226 is 6221652478.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336800 + ... + 1343323.

It is an arithmetic number, because the mean of its divisors is an integer number (940723524).

Almost surely, 2^8742561226 is an apocalyptic number.

8742561226 is a deficient number, since it is larger than the sum of its proper divisors (6309015158).

8742561226 is a wasteful number, since it uses less digits than its factorization.

8742561226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2680365.

The product of its digits is 322560, while the sum is 43.

The square root of 8742561226 is about 93501.6642953482. The cubic root of 8742561226 is about 2060.0585355849.

The spelling of 8742561226 in words is "eight billion, seven hundred forty-two million, five hundred sixty-one thousand, two hundred twenty-six".