2816195280 has 80 divisors (see below), whose sum is σ = 8894966400. Its totient is φ = 736812544.

The previous prime is 2816195273. The next prime is 2816195281. The reversal of 2816195280 is 825916182.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2816195281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97980 + ... + 123419.

It is an arithmetic number, because the mean of its divisors is an integer number (111187080).

Almost surely, 2^2816195280 is an apocalyptic number.

2816195280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2816195280 is an abundant number, since it is smaller than the sum of its proper divisors (6078771120).

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

2816195280 is a wasteful number, since it uses less digits than its factorization.

2816195280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221468 (or 221462 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 2816195280 is about 53067.8365867688. The cubic root of 2816195280 is about 1412.1719757255.

The spelling of 2816195280 in words is "two billion, eight hundred sixteen million, one hundred ninety-five thousand, two hundred eighty".