8847998778 has 16 divisors (see below), whose sum is σ = 17727435936. Its totient is φ = 2944093200.

The previous prime is 8847998767. The next prime is 8847998807. The reversal of 8847998778 is 8778997488.

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 7 ways as a sum of consecutive naturals, for example, 1306273 + ... + 1313028.

It is an arithmetic number, because the mean of its divisors is an integer number (1107964746).

Almost surely, 2^8847998778 is an apocalyptic number.

8847998778 is an abundant number, since it is smaller than the sum of its proper divisors (8879437158).

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

8847998778 is a wasteful number, since it uses less digits than its factorization.

8847998778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619869.

The product of its digits is 455196672, while the sum is 75.

The square root of 8847998778 is about 94063.8016348478. The cubic root of 8847998778 is about 2068.3070771833.

The spelling of 8847998778 in words is "eight billion, eight hundred forty-seven million, nine hundred ninety-eight thousand, seven hundred seventy-eight".