189046347077 has 16 divisors (see below), whose sum is σ = 220149401472. Its totient is φ = 158967956160.

The previous prime is 189046347071. The next prime is 189046347089. The reversal of 189046347077 is 770743640981.

It is a cyclic number.

It is not a de Polignac number, because 189046347077 - 2²⁰ = 189045298501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189046347071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6731138 + ... + 6759164.

It is an arithmetic number, because the mean of its divisors is an integer number (13759337592).

Almost surely, 2^189046347077 is an apocalyptic number.

It is an amenable number.

189046347077 is a deficient number, since it is larger than the sum of its proper divisors (31103054395).

189046347077 is a wasteful number, since it uses less digits than its factorization.

189046347077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46268.

The product of its (nonzero) digits is 7112448, while the sum is 56.

The spelling of 189046347077 in words is "one hundred eighty-nine billion, forty-six million, three hundred forty-seven thousand, seventy-seven".