8999302279680 has 560 divisors, whose sum is σ = 33757779274560. Its totient is φ = 2295463256064.

The previous prime is 8999302279633. The next prime is 8999302279697. The reversal of 8999302279680 is 869722039998.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 8999302279599 and 8999302279608.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 42818691 + ... + 43028349.

Almost surely, 2^{8999302279680} is an apocalyptic number.

8999302279680 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 8999302279680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16878889637280).

8999302279680 is an abundant number, since it is smaller than the sum of its proper divisors (24758476994880).

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

8999302279680 is an equidigital number, since it uses as much as digits as its factorization.

8999302279680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209723 (or 209692 counting only the distinct ones).

The product of its (nonzero) digits is 211631616, while the sum is 72.

The spelling of 8999302279680 in words is "eight trillion, nine hundred ninety-nine billion, three hundred two million, two hundred seventy-nine thousand, six hundred eighty".