2172726286071 has 16 divisors (see below), whose sum is σ = 3179717673600. Its totient is φ = 1308725255520.

The previous prime is 2172726286069. The next prime is 2172726286123. The reversal of 2172726286071 is 1706826272712.

It is a happy number.

It is not a de Polignac number, because 2172726286071 - 2¹ = 2172726286069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172726286021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201958396 + ... + 201969153.

It is an arithmetic number, because the mean of its divisors is an integer number (198732354600).

Almost surely, 2^{2172726286071} is an apocalyptic number.

2172726286071 is a deficient number, since it is larger than the sum of its proper divisors (1006991387529).

2172726286071 is a wasteful number, since it uses less digits than its factorization.

2172726286071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403927726.

The product of its (nonzero) digits is 1580544, while the sum is 51.

The spelling of 2172726286071 in words is "two trillion, one hundred seventy-two billion, seven hundred twenty-six million, two hundred eighty-six thousand, seventy-one".