2816513780 has 18 divisors (see below), whose sum is σ = 5915177394. Its totient is φ = 1126510576.

The previous prime is 2816513753. The next prime is 2816513789. The reversal of 2816513780 is 873156182.

It can be written as a sum of positive squares in only one way, i.e., 2253211024 + 563302756 = 47468^2 + 23734^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2816513789) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 231407 + ... + 243273.

Almost surely, 2^2816513780 is an apocalyptic number.

2816513780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2816513780 is an abundant number, since it is smaller than the sum of its proper divisors (3098663614).

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

2816513780 is an frugal number, since it uses more digits than its factorization.

2816513780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23743 (or 11874 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 2816513780 is about 53070.8373779800. The cubic root of 2816513780 is about 1412.2252106488.

The spelling of 2816513780 in words is "two billion, eight hundred sixteen million, five hundred thirteen thousand, seven hundred eighty".