2732728881 has 16 divisors (see below), whose sum is σ = 3669952320. Its totient is φ = 1808701440.

The previous prime is 2732728861. The next prime is 2732728897. The reversal of 2732728881 is 1888272372.

It is not a de Polignac number, because 2732728881 - 2¹⁴ = 2732712497 is a prime.

It is a super-2 number, since 2×2732728881² = 14935614274103024322, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2732728881.

It is not an unprimeable number, because it can be changed into a prime (2732728811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297130 + ... + 306188.

It is an arithmetic number, because the mean of its divisors is an integer number (229372020).

Almost surely, 2^2732728881 is an apocalyptic number.

It is an amenable number.

2732728881 is a deficient number, since it is larger than the sum of its proper divisors (937223439).

2732728881 is a wasteful number, since it uses less digits than its factorization.

2732728881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9776.

The product of its digits is 602112, while the sum is 48.

The square root of 2732728881 is about 52275.5093805885. The cubic root of 2732728881 is about 1398.0805124926.

The spelling of 2732728881 in words is "two billion, seven hundred thirty-two million, seven hundred twenty-eight thousand, eight hundred eighty-one".