2063722643 has 4 divisors (see below), whose sum is σ = 2063813640. Its totient is φ = 2063631648.

The previous prime is 2063722637. The next prime is 2063722649. The reversal of 2063722643 is 3462273602.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (2063722637) and next prime (2063722649).

It is a cyclic number.

It is not a de Polignac number, because 2063722643 - 2⁶ = 2063722579 is a prime.

It is a super-2 number, since 2×2063722643² = 8517902294461810898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2063722649) 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, 18971 + ... + 66987.

It is an arithmetic number, because the mean of its divisors is an integer number (515953410).

Almost surely, 2^2063722643 is an apocalyptic number.

2063722643 is a deficient number, since it is larger than the sum of its proper divisors (90997).

2063722643 is an equidigital number, since it uses as much as digits as its factorization.

2063722643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90996.

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 2063722643 is about 45428.2141735728. The cubic root of 2063722643 is about 1273.1623184724.

The spelling of 2063722643 in words is "two billion, sixty-three million, seven hundred twenty-two thousand, six hundred forty-three".