8278396500 has 288 divisors, whose sum is σ = 28066566528. Its totient is φ = 1888128000.

The previous prime is 8278396493. The next prime is 8278396547. The reversal of 8278396500 is 56938728.

It is a super-2 number, since 2×8278396500² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8278396500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3084159 + ... + 3086841.

It is an arithmetic number, because the mean of its divisors is an integer number (97453356).

Almost surely, 2^8278396500 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 8278396500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14033283264).

8278396500 is an abundant number, since it is smaller than the sum of its proper divisors (19788170028).

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

8278396500 is a wasteful number, since it uses less digits than its factorization.

8278396500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2744 (or 2721 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 8278396500 is about 90985.6939304196. The cubic root of 8278396500 is about 2022.9356801864.

The spelling of 8278396500 in words is "eight billion, two hundred seventy-eight million, three hundred ninety-six thousand, five hundred".