8978307280208 has 160 divisors (see below), whose sum is σ = 21841499197440. Its totient is φ = 3486076323840.

The previous prime is 8978307280183. The next prime is 8978307280213. The reversal of 8978307280208 is 8020827038798.

It is a super-2 number, since 2×8978307280208² (a number of 27 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 259239053 + ... + 259273683.

It is an arithmetic number, because the mean of its divisors is an integer number (136509369984).

Almost surely, 2^{8978307280208} 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 8978307280208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10920749598720).

8978307280208 is an abundant number, since it is smaller than the sum of its proper divisors (12863191917232).

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

8978307280208 is a wasteful number, since it uses less digits than its factorization.

8978307280208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39985 (or 39979 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 62.

The spelling of 8978307280208 in words is "eight trillion, nine hundred seventy-eight billion, three hundred seven million, two hundred eighty thousand, two hundred eight".