38929171673 has 4 divisors (see below), whose sum is σ = 44490481920. Its totient is φ = 33367861428.

The previous prime is 38929171667. The next prime is 38929171681. The reversal of 38929171673 is 37617192983.

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.

It is a cyclic number.

It is not a de Polignac number, because 38929171673 - 2⁴ = 38929171657 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38929171273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2780655113 + ... + 2780655126.

It is an arithmetic number, because the mean of its divisors is an integer number (11122620480).

Almost surely, 2^38929171673 is an apocalyptic number.

It is an amenable number.

38929171673 is a deficient number, since it is larger than the sum of its proper divisors (5561310247).

38929171673 is an equidigital number, since it uses as much as digits as its factorization.

38929171673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5561310246.

The product of its digits is 3429216, while the sum is 56.

The spelling of 38929171673 in words is "thirty-eight billion, nine hundred twenty-nine million, one hundred seventy-one thousand, six hundred seventy-three".