2725728916 has 6 divisors (see below), whose sum is σ = 4770025610. Its totient is φ = 1362864456.

The previous prime is 2725728911. The next prime is 2725728931. The reversal of 2725728916 is 6198275272.

It can be written as a sum of positive squares in only one way, i.e., 1967277316 + 758451600 = 44354^2 + 27540^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2725728916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2725728911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 340716111 + ... + 340716118.

Almost surely, 2^2725728916 is an apocalyptic number.

It is an amenable number.

2725728916 is a deficient number, since it is larger than the sum of its proper divisors (2044296694).

2725728916 is a wasteful number, since it uses less digits than its factorization.

2725728916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681432233 (or 681432231 counting only the distinct ones).

The product of its digits is 846720, while the sum is 49.

The square root of 2725728916 is about 52208.5138267697. The cubic root of 2725728916 is about 1396.8857503896.

The spelling of 2725728916 in words is "two billion, seven hundred twenty-five million, seven hundred twenty-eight thousand, nine hundred sixteen".