7042287816 has 48 divisors (see below), whose sum is σ = 19138015260. Its totient is φ = 2339410560.

The previous prime is 7042287809. The next prime is 7042287827. The reversal of 7042287816 is 6187822407.

7042287816 is a `hidden beast` number, since 70 + 422 + 87 + 81 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6980602500 + 61685316 = 83550^2 + 7854^2 .

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 11 ways as a sum of consecutive naturals, for example, 145815 + ... + 188006.

Almost surely, 2^7042287816 is an apocalyptic number.

It is an amenable number.

7042287816 is an abundant number, since it is smaller than the sum of its proper divisors (12095727444).

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

7042287816 is a wasteful number, since it uses less digits than its factorization.

7042287816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334126 (or 334119 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 7042287816 is about 83918.3401647101. The cubic root of 7042287816 is about 1916.7755318362.

The spelling of 7042287816 in words is "seven billion, forty-two million, two hundred eighty-seven thousand, eight hundred sixteen".