38443185673 has 4 divisors (see below), whose sum is σ = 38444658948. Its totient is φ = 38441712400.

The previous prime is 38443185667. The next prime is 38443185727. The reversal of 38443185673 is 37658134483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37658134483 = 3539 ⋅10640897.

It can be written as a sum of positive squares in 2 ways, for example, as 18772562169 + 19670623504 = 137013^2 + 140252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38443185673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38443185673.

It is not an unprimeable number, because it can be changed into a prime (38443185073) 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 3 ways as a sum of consecutive naturals, for example, 696778 + ... + 749923.

It is an arithmetic number, because the mean of its divisors is an integer number (9611164737).

Almost surely, 2^38443185673 is an apocalyptic number.

It is an amenable number.

38443185673 is a deficient number, since it is larger than the sum of its proper divisors (1473275).

38443185673 is a wasteful number, since it uses less digits than its factorization.

38443185673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473274.

The product of its digits is 5806080, while the sum is 52.

The spelling of 38443185673 in words is "thirty-eight billion, four hundred forty-three million, one hundred eighty-five thousand, six hundred seventy-three".