8263399680 has 432 divisors, whose sum is σ = 30641554944. Its totient is φ = 2130001920.

The previous prime is 8263399619. The next prime is 8263399691. The reversal of 8263399680 is 869933628.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9641812 + ... + 9642668.

Almost surely, 2^8263399680 is an apocalyptic number.

8263399680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8263399680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15320777472).

8263399680 is an abundant number, since it is smaller than the sum of its proper divisors (22378155264).

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

8263399680 is an equidigital number, since it uses as much as digits as its factorization.

8263399680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The square root of 8263399680 is about 90903.2435064888. The cubic root of 8263399680 is about 2021.7133846932.

The spelling of 8263399680 in words is "eight billion, two hundred sixty-three million, three hundred ninety-nine thousand, six hundred eighty".