162747889691 has 2 divisors, whose sum is σ = 162747889692. Its totient is φ = 162747889690.

The previous prime is 162747889673. The next prime is 162747889721. The reversal of 162747889691 is 196988747261.

162747889691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 162747889691 - 2²⁶ = 162680780827 is a prime.

It is not a weakly prime, because it can be changed into another prime (162747889621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81373944845 + 81373944846.

It is an arithmetic number, because the mean of its divisors is an integer number (81373944846).

Almost surely, 2^162747889691 is an apocalyptic number.

162747889691 is a deficient number, since it is larger than the sum of its proper divisors (1).

162747889691 is an equidigital number, since it uses as much as digits as its factorization.

162747889691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73156608, while the sum is 68.

The spelling of 162747889691 in words is "one hundred sixty-two billion, seven hundred forty-seven million, eight hundred eighty-nine thousand, six hundred ninety-one".