8978885889 has 8 divisors (see below), whose sum is σ = 12492363072. Its totient is φ = 5725666320.

The previous prime is 8978885887. The next prime is 8978885891. The reversal of 8978885889 is 9885888798.

It is an interprime number because it is at equal distance from previous prime (8978885887) and next prime (8978885891).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8978885889 - 2¹ = 8978885887 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8978885887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65064322 + ... + 65064459.

It is an arithmetic number, because the mean of its divisors is an integer number (1561545384).

Almost surely, 2^8978885889 is an apocalyptic number.

It is an amenable number.

8978885889 is a deficient number, since it is larger than the sum of its proper divisors (3513477183).

8978885889 is a wasteful number, since it uses less digits than its factorization.

8978885889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130128807.

The product of its digits is 743178240, while the sum is 78.

The square root of 8978885889 is about 94756.9833257687. The cubic root of 8978885889 is about 2078.4559152558.

The spelling of 8978885889 in words is "eight billion, nine hundred seventy-eight million, eight hundred eighty-five thousand, eight hundred eighty-nine".