8923978811 has 24 divisors (see below), whose sum is σ = 9952017600. Its totient is φ = 7994931120.

The previous prime is 8923978801. The next prime is 8923978831. The reversal of 8923978811 is 1188793298.

8923978811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8923978811 - 2²⁶ = 8856869947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8923978801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5251640 + ... + 5253338.

It is an arithmetic number, because the mean of its divisors is an integer number (414667400).

Almost surely, 2^8923978811 is an apocalyptic number.

8923978811 is a deficient number, since it is larger than the sum of its proper divisors (1028038789).

8923978811 is a wasteful number, since it uses less digits than its factorization.

8923978811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327 (or 2316 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 56.

The square root of 8923978811 is about 94466.8132785265. The cubic root of 8923978811 is about 2074.2105719915.

The spelling of 8923978811 in words is "eight billion, nine hundred twenty-three million, nine hundred seventy-eight thousand, eight hundred eleven".