189408271086 has 12 divisors (see below), whose sum is σ = 410384587392. Its totient is φ = 63136090356.

The previous prime is 189408271027. The next prime is 189408271103. The reversal of 189408271086 is 680172804981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5261340846 + ... + 5261340881.

It is an arithmetic number, because the mean of its divisors is an integer number (34198715616).

Almost surely, 2^189408271086 is an apocalyptic number.

189408271086 is an abundant number, since it is smaller than the sum of its proper divisors (220976316306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189408271086 is a wasteful number, since it uses less digits than its factorization.

189408271086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10522681735 (or 10522681732 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 189408271086 in words is "one hundred eighty-nine billion, four hundred eight million, two hundred seventy-one thousand, eighty-six".