189146899177 has 8 divisors (see below), whose sum is σ = 190891356480. Its totient is φ = 187402608720.

The previous prime is 189146899169. The next prime is 189146899189. The reversal of 189146899177 is 771998641981.

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 189146899177 - 2³ = 189146899169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189146899127) 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, 4507302 + ... + 4549072.

It is an arithmetic number, because the mean of its divisors is an integer number (23861419560).

Almost surely, 2^189146899177 is an apocalyptic number.

It is an amenable number.

189146899177 is a deficient number, since it is larger than the sum of its proper divisors (1744457303).

189146899177 is a wasteful number, since it uses less digits than its factorization.

189146899177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83423.

The product of its digits is 54867456, while the sum is 70.

The spelling of 189146899177 in words is "one hundred eighty-nine billion, one hundred forty-six million, eight hundred ninety-nine thousand, one hundred seventy-seven".