2723212643 has 4 divisors (see below), whose sum is σ = 2883401640. Its totient is φ = 2563023648.

The previous prime is 2723212621. The next prime is 2723212649. The reversal of 2723212643 is 3462123272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2723212643 - 2¹⁰ = 2723211619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2723212649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80094473 + ... + 80094506.

It is an arithmetic number, because the mean of its divisors is an integer number (720850410).

Almost surely, 2^2723212643 is an apocalyptic number.

2723212643 is a deficient number, since it is larger than the sum of its proper divisors (160188997).

2723212643 is a wasteful number, since it uses less digits than its factorization.

2723212643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160188996.

The product of its digits is 24192, while the sum is 32.

The square root of 2723212643 is about 52184.4099612135. The cubic root of 2723212643 is about 1396.4557702295.

The spelling of 2723212643 in words is "two billion, seven hundred twenty-three million, two hundred twelve thousand, six hundred forty-three".