8226911785 has 16 divisors (see below), whose sum is σ = 10123263360. Its totient is φ = 6414540160.

The previous prime is 8226911773. The next prime is 8226911809. The reversal of 8226911785 is 5871196228.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8226911785 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189204 + ... + 228586.

It is an arithmetic number, because the mean of its divisors is an integer number (632703960).

Almost surely, 2^8226911785 is an apocalyptic number.

It is an amenable number.

8226911785 is a deficient number, since it is larger than the sum of its proper divisors (1896351575).

8226911785 is a wasteful number, since it uses less digits than its factorization.

8226911785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40448.

The product of its digits is 483840, while the sum is 49.

The square root of 8226911785 is about 90702.3251355774. The cubic root of 8226911785 is about 2018.7332993152.

The spelling of 8226911785 in words is "eight billion, two hundred twenty-six million, nine hundred eleven thousand, seven hundred eighty-five".