117816173573 has 4 divisors (see below), whose sum is σ = 134647055520. Its totient is φ = 100985291628.

The previous prime is 117816173561. The next prime is 117816173591. The reversal of 117816173573 is 375371618711.

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: 375371618711 = 335609 ⋅1118479.

It is a cyclic number.

It is not a de Polignac number, because 117816173573 - 2⁶ = 117816173509 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 (117816173543) 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, 8415440963 + ... + 8415440976.

It is an arithmetic number, because the mean of its divisors is an integer number (33661763880).

Almost surely, 2^117816173573 is an apocalyptic number.

It is an amenable number.

117816173573 is a deficient number, since it is larger than the sum of its proper divisors (16830881947).

117816173573 is an equidigital number, since it uses as much as digits as its factorization.

117816173573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16830881946.

The product of its digits is 740880, while the sum is 50.

The spelling of 117816173573 in words is "one hundred seventeen billion, eight hundred sixteen million, one hundred seventy-three thousand, five hundred seventy-three".