7842545842 has 16 divisors (see below), whose sum is σ = 12997366272. Its totient is φ = 3530148160.

The previous prime is 7842545803. The next prime is 7842545873. The reversal of 7842545842 is 2485452487.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5013634 + ... + 5015197.

It is an arithmetic number, because the mean of its divisors is an integer number (812335392).

Almost surely, 2^7842545842 is an apocalyptic number.

7842545842 is a deficient number, since it is larger than the sum of its proper divisors (5154820430).

7842545842 is a wasteful number, since it uses less digits than its factorization.

7842545842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10028873.

The product of its digits is 2867200, while the sum is 49.

The square root of 7842545842 is about 88558.1494951199. The cubic root of 7842545842 is about 1986.7917836999.

The spelling of 7842545842 in words is "seven billion, eight hundred forty-two million, five hundred forty-five thousand, eight hundred forty-two".