171458742873 has 32 divisors (see below), whose sum is σ = 265774804992. Its totient is φ = 97281536000.

The previous prime is 171458742869. The next prime is 171458742887. The reversal of 171458742873 is 378247854171.

It is not a de Polignac number, because 171458742873 - 2² = 171458742869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (171458742173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2367528 + ... + 2438873.

It is an arithmetic number, because the mean of its divisors is an integer number (8305462656).

Almost surely, 2^171458742873 is an apocalyptic number.

It is an amenable number.

171458742873 is a deficient number, since it is larger than the sum of its proper divisors (94316062119).

171458742873 is a wasteful number, since it uses less digits than its factorization.

171458742873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4806485.

The product of its digits is 10536960, while the sum is 57.

The spelling of 171458742873 in words is "one hundred seventy-one billion, four hundred fifty-eight million, seven hundred forty-two thousand, eight hundred seventy-three".