169374539813 has 8 divisors (see below), whose sum is σ = 171299159640. Its totient is φ = 167450398720.

The previous prime is 169374539779. The next prime is 169374539833. The reversal of 169374539813 is 318935473961.

It can be written as a sum of positive squares in 4 ways, for example, as 54576902689 + 114797637124 = 233617^2 + 338818^2 .

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 169374539813 - 2²⁸ = 169106104357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169374539833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 617573 + ... + 848613.

It is an arithmetic number, because the mean of its divisors is an integer number (21412394955).

Almost surely, 2^169374539813 is an apocalyptic number.

It is an amenable number.

169374539813 is a deficient number, since it is larger than the sum of its proper divisors (1924619827).

169374539813 is an equidigital number, since it uses as much as digits as its factorization.

169374539813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239367.

The product of its digits is 14696640, while the sum is 59.

The spelling of 169374539813 in words is "one hundred sixty-nine billion, three hundred seventy-four million, five hundred thirty-nine thousand, eight hundred thirteen".