170638985483 has 4 divisors (see below), whose sum is σ = 171725858160. Its totient is φ = 169552112808.

The previous prime is 170638985471. The next prime is 170638985497. The reversal of 170638985483 is 384589836071.

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

It is a cyclic number.

It is not a de Polignac number, because 170638985483 - 2²⁰ = 170637936907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170638985983) 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, 543436103 + ... + 543436416.

It is an arithmetic number, because the mean of its divisors is an integer number (42931464540).

Almost surely, 2^170638985483 is an apocalyptic number.

170638985483 is a deficient number, since it is larger than the sum of its proper divisors (1086872677).

170638985483 is a wasteful number, since it uses less digits than its factorization.

170638985483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086872676.

The product of its (nonzero) digits is 34836480, while the sum is 62.

The spelling of 170638985483 in words is "one hundred seventy billion, six hundred thirty-eight million, nine hundred eighty-five thousand, four hundred eighty-three".