8819866245 has 16 divisors (see below), whose sum is σ = 14113604160. Its totient is φ = 4703322624.

The previous prime is 8819866243. The next prime is 8819866261. The reversal of 8819866245 is 5426689188.

It is a happy number.

It is not a de Polignac number, because 8819866245 - 2¹ = 8819866243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8819866241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98197 + ... + 165173.

It is an arithmetic number, because the mean of its divisors is an integer number (882100260).

Almost surely, 2^8819866245 is an apocalyptic number.

It is an amenable number.

8819866245 is a deficient number, since it is larger than the sum of its proper divisors (5293737915).

8819866245 is a wasteful number, since it uses less digits than its factorization.

8819866245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75764.

The product of its digits is 6635520, while the sum is 57.

The square root of 8819866245 is about 93914.1429445001. The cubic root of 8819866245 is about 2066.1126640113.

The spelling of 8819866245 in words is "eight billion, eight hundred nineteen million, eight hundred sixty-six thousand, two hundred forty-five".