2723021651 has 16 divisors (see below), whose sum is σ = 3337632000. Its totient is φ = 2169449568.

The previous prime is 2723021641. The next prime is 2723021663. The reversal of 2723021651 is 1561203272.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2723021651 - 2¹⁴ = 2723005267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2723021641) 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 15 ways as a sum of consecutive naturals, for example, 186101 + ... + 200198.

It is an arithmetic number, because the mean of its divisors is an integer number (208602000).

Almost surely, 2^2723021651 is an apocalyptic number.

2723021651 is a deficient number, since it is larger than the sum of its proper divisors (614610349).

2723021651 is a wasteful number, since it uses less digits than its factorization.

2723021651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386378.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2723021651 is about 52182.5799572999. The cubic root of 2723021651 is about 1396.4231227464.

The spelling of 2723021651 in words is "two billion, seven hundred twenty-three million, twenty-one thousand, six hundred fifty-one".