8266403808 has 360 divisors, whose sum is σ = 26717212368. Its totient is φ = 2505904128.

The previous prime is 8266403779. The next prime is 8266403819. The reversal of 8266403808 is 8083046628.

It is a happy number.

8266403808 is a `hidden beast` number, since 8 + 266 + 4 + 0 + 380 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 49499341 + ... + 49499507.

Almost surely, 2^8266403808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8266403808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13358606184).

8266403808 is an abundant number, since it is smaller than the sum of its proper divisors (18450808560).

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

8266403808 is a wasteful number, since it uses less digits than its factorization.

8266403808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 8266403808 is about 90919.7657718056. The cubic root of 8266403808 is about 2021.9583504528.

The spelling of 8266403808 in words is "eight billion, two hundred sixty-six million, four hundred three thousand, eight hundred eight".