170147541889 has 4 divisors (see below), whose sum is σ = 183235814356. Its totient is φ = 157059269424.

The previous prime is 170147541841. The next prime is 170147541911. The reversal of 170147541889 is 988145741071.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18254171664 + 151893370225 = 135108^2 + 389735^2 .

It is a cyclic number.

It is not a de Polignac number, because 170147541889 - 2¹³ = 170147533697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170147541089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6544136214 + ... + 6544136239.

It is an arithmetic number, because the mean of its divisors is an integer number (45808953589).

Almost surely, 2^170147541889 is an apocalyptic number.

It is an amenable number.

170147541889 is a deficient number, since it is larger than the sum of its proper divisors (13088272467).

170147541889 is a wasteful number, since it uses less digits than its factorization.

170147541889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13088272466.

The product of its (nonzero) digits is 2257920, while the sum is 55.

The spelling of 170147541889 in words is "one hundred seventy billion, one hundred forty-seven million, five hundred forty-one thousand, eight hundred eighty-nine".