8042881842 has 24 divisors (see below), whose sum is σ = 17711922540. Its totient is φ = 2637010080.

The previous prime is 8042881807. The next prime is 8042881867. The reversal of 8042881842 is 2481882408.

It can be written as a sum of positive squares in 2 ways, for example, as 6564402441 + 1478479401 = 81021^2 + 38451^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3661417 + ... + 3663612.

Almost surely, 2^8042881842 is an apocalyptic number.

8042881842 is an abundant number, since it is smaller than the sum of its proper divisors (9669040698).

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

8042881842 is a wasteful number, since it uses less digits than its factorization.

8042881842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7325098 (or 7325095 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 45.

The square root of 8042881842 is about 89682.1155080543. The cubic root of 8042881842 is about 2003.5671208752.

The spelling of 8042881842 in words is "eight billion, forty-two million, eight hundred eighty-one thousand, eight hundred forty-two".