8142844884 has 12 divisors (see below), whose sum is σ = 18999971424. Its totient is φ = 2714281624.

The previous prime is 8142844883. The next prime is 8142844901. The reversal of 8142844884 is 4884482418.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8142844883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339285192 + ... + 339285215.

It is an arithmetic number, because the mean of its divisors is an integer number (1583330952).

Almost surely, 2^8142844884 is an apocalyptic number.

It is an amenable number.

8142844884 is an abundant number, since it is smaller than the sum of its proper divisors (10857126540).

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

8142844884 is a wasteful number, since it uses less digits than its factorization.

8142844884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678570414 (or 678570412 counting only the distinct ones).

The product of its digits is 2097152, while the sum is 51.

The square root of 8142844884 is about 90237.7132024078. The cubic root of 8142844884 is about 2011.8335853702.

The spelling of 8142844884 in words is "eight billion, one hundred forty-two million, eight hundred forty-four thousand, eight hundred eighty-four".