1679727222091 has 8 divisors (see below), whose sum is σ = 1692019374480. Its totient is φ = 1667435524608.

The previous prime is 1679727222079. The next prime is 1679727222137. The reversal of 1679727222091 is 1902227279761.

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 1679727222091 - 2⁵ = 1679727222059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1679727222011) 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, 11988955 + ... + 12128251.

It is an arithmetic number, because the mean of its divisors is an integer number (211502421810).

Almost surely, 2^{1679727222091} is an apocalyptic number.

1679727222091 is a deficient number, since it is larger than the sum of its proper divisors (12292152389).

1679727222091 is a wasteful number, since it uses less digits than its factorization.

1679727222091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227453.

The product of its (nonzero) digits is 2667168, while the sum is 55.

The spelling of 1679727222091 in words is "one trillion, six hundred seventy-nine billion, seven hundred twenty-seven million, two hundred twenty-two thousand, ninety-one".