2722643056643 has 4 divisors (see below), whose sum is σ = 2722660783488. Its totient is φ = 2722625329800.

The previous prime is 2722643056607. The next prime is 2722643056769. The reversal of 2722643056643 is 3466503462272.

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 2722643056643 - 2⁶ = 2722643056579 is a prime.

It is a super-3 number, since 3×2722643056643³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2722643056591 and 2722643056600.

It is not an unprimeable number, because it can be changed into a prime (2722642056643) 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, 8631008 + ... + 8940893.

It is an arithmetic number, because the mean of its divisors is an integer number (680665195872).

Almost surely, 2^{2722643056643} is an apocalyptic number.

2722643056643 is a deficient number, since it is larger than the sum of its proper divisors (17726845).

2722643056643 is a wasteful number, since it uses less digits than its factorization.

2722643056643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17726844.

The product of its (nonzero) digits is 8709120, while the sum is 50.

The spelling of 2722643056643 in words is "two trillion, seven hundred twenty-two billion, six hundred forty-three million, fifty-six thousand, six hundred forty-three".