8813496978 has 384 divisors, whose sum is σ = 25168281600. Its totient is φ = 2263282560.

The previous prime is 8813496953. The next prime is 8813497001. The reversal of 8813496978 is 8796943188.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 69397551 + ... + 69397677.

It is an arithmetic number, because the mean of its divisors is an integer number (65542400).

Almost surely, 2^8813496978 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8813496978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12584140800).

8813496978 is an abundant number, since it is smaller than the sum of its proper divisors (16354784622).

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

8813496978 is a wasteful number, since it uses less digits than its factorization.

8813496978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 218 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The square root of 8813496978 is about 93880.2267679409. The cubic root of 8813496978 is about 2065.6151964438.

The spelling of 8813496978 in words is "eight billion, eight hundred thirteen million, four hundred ninety-six thousand, nine hundred seventy-eight".