8259818004 has 36 divisors (see below), whose sum is σ = 20882714580. Its totient is φ = 2752780800.

The previous prime is 8259818003. The next prime is 8259818009. The reversal of 8259818004 is 4008189528.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3636090000 + 4623728004 = 60300^2 + 67998^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8259818003) 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, 223654 + ... + 257954.

It is an arithmetic number, because the mean of its divisors is an integer number (580075405).

Almost surely, 2^8259818004 is an apocalyptic number.

It is an amenable number.

8259818004 is an abundant number, since it is smaller than the sum of its proper divisors (12622896576).

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

8259818004 is a wasteful number, since it uses less digits than its factorization.

8259818004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41000 (or 40995 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 8259818004 is about 90883.5408861253. The cubic root of 8259818004 is about 2021.4212463064.

The spelling of 8259818004 in words is "eight billion, two hundred fifty-nine million, eight hundred eighteen thousand, four".