8947142994 has 16 divisors (see below), whose sum is σ = 17915127840. Its totient is φ = 2978907360.

The previous prime is 8947142987. The next prime is 8947143011. The reversal of 8947142994 is 4992417498.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862827 + ... + 873134.

It is an arithmetic number, because the mean of its divisors is an integer number (1119695490).

Almost surely, 2^8947142994 is an apocalyptic number.

8947142994 is an abundant number, since it is smaller than the sum of its proper divisors (8967984846).

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

8947142994 is a wasteful number, since it uses less digits than its factorization.

8947142994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736825.

The product of its digits is 5225472, while the sum is 57.

The square root of 8947142994 is about 94589.3386909962. The cubic root of 8947142994 is about 2076.0037138755.

The spelling of 8947142994 in words is "eight billion, nine hundred forty-seven million, one hundred forty-two thousand, nine hundred ninety-four".