2733671721 has 32 divisors (see below), whose sum is σ = 4256524800. Its totient is φ = 1542948480.

The previous prime is 2733671719. The next prime is 2733671767. The reversal of 2733671721 is 1271763372.

It is not a de Polignac number, because 2733671721 - 2¹ = 2733671719 is a prime.

It is a super-2 number, since 2×2733671721² = 14945922156390203682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2733671721.

It is not an unprimeable number, because it can be changed into a prime (2733671701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45 + ... + 73941.

It is an arithmetic number, because the mean of its divisors is an integer number (133016400).

Almost surely, 2^2733671721 is an apocalyptic number.

It is an amenable number.

2733671721 is a deficient number, since it is larger than the sum of its proper divisors (1522853079).

2733671721 is a wasteful number, since it uses less digits than its factorization.

2733671721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73989.

The product of its digits is 74088, while the sum is 39.

The square root of 2733671721 is about 52284.5265924824. The cubic root of 2733671721 is about 1398.2412815407.

The spelling of 2733671721 in words is "two billion, seven hundred thirty-three million, six hundred seventy-one thousand, seven hundred twenty-one".