173842066739 has 4 divisors (see below), whose sum is σ = 189645891000. Its totient is φ = 158038242480.

The previous prime is 173842066733. The next prime is 173842066747. The reversal of 173842066739 is 937660248371.

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 173842066739 - 2³⁶ = 105122590003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173842066733) 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, 7901912114 + ... + 7901912135.

It is an arithmetic number, because the mean of its divisors is an integer number (47411472750).

Almost surely, 2^173842066739 is an apocalyptic number.

173842066739 is a deficient number, since it is larger than the sum of its proper divisors (15803824261).

173842066739 is a wasteful number, since it uses less digits than its factorization.

173842066739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803824260.

The product of its (nonzero) digits is 9144576, while the sum is 56.

The spelling of 173842066739 in words is "one hundred seventy-three billion, eight hundred forty-two million, sixty-six thousand, seven hundred thirty-nine".