2169727445791 has 8 divisors (see below), whose sum is σ = 2297405461104. Its totient is φ = 2042054651520.

The previous prime is 2169727445789. The next prime is 2169727445839. The reversal of 2169727445791 is 1975447279612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2169727445791 - 2¹ = 2169727445789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2169727440791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433000 + ... + 2127661.

It is an arithmetic number, because the mean of its divisors is an integer number (287175682638).

Almost surely, 2^{2169727445791} is an apocalyptic number.

2169727445791 is a deficient number, since it is larger than the sum of its proper divisors (127678015313).

2169727445791 is a wasteful number, since it uses less digits than its factorization.

2169727445791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2610521.

The product of its digits is 53343360, while the sum is 64.

The spelling of 2169727445791 in words is "two trillion, one hundred sixty-nine billion, seven hundred twenty-seven million, four hundred forty-five thousand, seven hundred ninety-one".