2721959018 has 24 divisors (see below), whose sum is σ = 4176927972. Its totient is φ = 1330279104.

The previous prime is 2721958949. The next prime is 2721959027. The reversal of 2721959018 is 8109591272.

It is a happy number.

2721959018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2320637929 + 401321089 = 48173^2 + 20033^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2721959018.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1228880 + ... + 1231092.

Almost surely, 2^2721959018 is an apocalyptic number.

2721959018 is a deficient number, since it is larger than the sum of its proper divisors (1454968954).

2721959018 is a wasteful number, since it uses less digits than its factorization.

2721959018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2486 (or 2419 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 2721959018 is about 52172.3970888822. The cubic root of 2721959018 is about 1396.2414522166.

The spelling of 2721959018 in words is "two billion, seven hundred twenty-one million, nine hundred fifty-nine thousand, eighteen".