170974379489 has 4 divisors (see below), whose sum is σ = 173034311856. Its totient is φ = 168914447124.

The previous prime is 170974379461. The next prime is 170974379491. The reversal of 170974379489 is 984973479071.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 984973479071 = 349 ⋅2822273579.

It is a cyclic number.

It is not a de Polignac number, because 170974379489 - 2²⁴ = 170957602273 is a prime.

It is a super-2 number, since 2×170974379489² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170974379689) 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, 1029966059 + ... + 1029966224.

It is an arithmetic number, because the mean of its divisors is an integer number (43258577964).

Almost surely, 2^170974379489 is an apocalyptic number.

It is an amenable number.

170974379489 is a deficient number, since it is larger than the sum of its proper divisors (2059932367).

170974379489 is an equidigital number, since it uses as much as digits as its factorization.

170974379489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2059932366.

The product of its (nonzero) digits is 96018048, while the sum is 68.

The spelling of 170974379489 in words is "one hundred seventy billion, nine hundred seventy-four million, three hundred seventy-nine thousand, four hundred eighty-nine".