147171718873 has 4 divisors (see below), whose sum is σ = 149368311760. Its totient is φ = 144975125988.

The previous prime is 147171718847. The next prime is 147171718913. The reversal of 147171718873 is 378817171741.

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: 378817171741 = 1063 ⋅356366107.

It is a cyclic number.

It is not a de Polignac number, because 147171718873 - 2⁹ = 147171718361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147171718823) 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, 1098296343 + ... + 1098296476.

It is an arithmetic number, because the mean of its divisors is an integer number (37342077940).

Almost surely, 2^147171718873 is an apocalyptic number.

It is an amenable number.

147171718873 is a deficient number, since it is larger than the sum of its proper divisors (2196592887).

147171718873 is an equidigital number, since it uses as much as digits as its factorization.

147171718873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196592886.

The product of its digits is 1843968, while the sum is 55.

The spelling of 147171718873 in words is "one hundred forty-seven billion, one hundred seventy-one million, seven hundred eighteen thousand, eight hundred seventy-three".