189086280091 has 2 divisors, whose sum is σ = 189086280092. Its totient is φ = 189086280090.

The previous prime is 189086280041. The next prime is 189086280107. The reversal of 189086280091 is 190082680981.

189086280091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (190082680981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189086280091 - 2¹⁵ = 189086247323 is a prime.

It is a super-3 number, since 3×189086280091³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (189086280011) 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, 94543140045 + 94543140046.

It is an arithmetic number, because the mean of its divisors is an integer number (94543140046).

Almost surely, 2^189086280091 is an apocalyptic number.

189086280091 is a deficient number, since it is larger than the sum of its proper divisors (1).

189086280091 is an equidigital number, since it uses as much as digits as its factorization.

189086280091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 52.

The spelling of 189086280091 in words is "one hundred eighty-nine billion, eighty-six million, two hundred eighty thousand, ninety-one".