8978994043 has 2 divisors, whose sum is σ = 8978994044. Its totient is φ = 8978994042.

The previous prime is 8978994041. The next prime is 8978994047. The reversal of 8978994043 is 3404998798.

8978994043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8978994043 - 2¹ = 8978994041 is a prime.

Together with 8978994041, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8978994041) 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 as a sum of consecutive naturals, namely, 4489497021 + 4489497022.

It is an arithmetic number, because the mean of its divisors is an integer number (4489497022).

Almost surely, 2^8978994043 is an apocalyptic number.

8978994043 is a deficient number, since it is larger than the sum of its proper divisors (1).

8978994043 is an equidigital number, since it uses as much as digits as its factorization.

8978994043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15676416, while the sum is 61.

The square root of 8978994043 is about 94757.5540154979. The cubic root of 8978994043 is about 2078.4642604789.

The spelling of 8978994043 in words is "eight billion, nine hundred seventy-eight million, nine hundred ninety-four thousand, forty-three".