2805142816 has 48 divisors (see below), whose sum is σ = 6370612416. Its totient is φ = 1190958336.

The previous prime is 2805142807. The next prime is 2805142861. The reversal of 2805142816 is 6182415082.

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, 34551 + ... + 82486.

It is an arithmetic number, because the mean of its divisors is an integer number (132721092).

Almost surely, 2^2805142816 is an apocalyptic number.

It is an amenable number.

2805142816 is an abundant number, since it is smaller than the sum of its proper divisors (3565469600).

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

2805142816 is a wasteful number, since it uses less digits than its factorization.

2805142816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117161 (or 117153 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2805142816 is about 52963.5989713690. The cubic root of 2805142816 is about 1410.3221462677.

Adding to 2805142816 its reverse (6182415082), we get a palindrome (8987557898).

The spelling of 2805142816 in words is "two billion, eight hundred five million, one hundred forty-two thousand, eight hundred sixteen".