2763721216 has 80 divisors (see below), whose sum is σ = 5918799744. Its totient is φ = 1285853184.

The previous prime is 2763721189. The next prime is 2763721217. The reversal of 2763721216 is 6121273672.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (2763721217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432541 + ... + 438883.

Almost surely, 2^2763721216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2763721216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2959399872).

2763721216 is an abundant number, since it is smaller than the sum of its proper divisors (3155078528).

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

2763721216 is an equidigital number, since it uses as much as digits as its factorization.

2763721216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6421 (or 6405 counting only the distinct ones).

The product of its digits is 42336, while the sum is 37.

The square root of 2763721216 is about 52571.1062847264. The cubic root of 2763721216 is about 1403.3459452504.

Adding to 2763721216 its reverse (6121273672), we get a palindrome (8884994888).

The spelling of 2763721216 in words is "two billion, seven hundred sixty-three million, seven hundred twenty-one thousand, two hundred sixteen".