2171072722263 has 16 divisors (see below), whose sum is σ = 2905595611776. Its totient is φ = 1441967948640.

The previous prime is 2171072722199. The next prime is 2171072722303. The reversal of 2171072722263 is 3622272701712.

It is not a de Polignac number, because 2171072722263 - 2⁶ = 2171072722199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2171072724263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3863956 + ... + 4390022.

It is an arithmetic number, because the mean of its divisors is an integer number (181599725736).

Almost surely, 2^{2171072722263} is an apocalyptic number.

2171072722263 is a deficient number, since it is larger than the sum of its proper divisors (734522889513).

2171072722263 is a wasteful number, since it uses less digits than its factorization.

2171072722263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531214.

The product of its (nonzero) digits is 197568, while the sum is 42.

The spelling of 2171072722263 in words is "two trillion, one hundred seventy-one billion, seventy-two million, seven hundred twenty-two thousand, two hundred sixty-three".