745171171547 has 32 divisors (see below), whose sum is σ = 868198003200. Its totient is φ = 632750469120.

The previous prime is 745171171489. The next prime is 745171171553.

745171171547 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 745171171547 - 2²⁴ = 745154394331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 745171171495 and 745171171504.

It is not an unprimeable number, because it can be changed into a prime (745171173547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75593243 + ... + 75603099.

It is an arithmetic number, because the mean of its divisors is an integer number (27131187600).

Almost surely, 2^745171171547 is an apocalyptic number.

745171171547 is a deficient number, since it is larger than the sum of its proper divisors (123026831653).

745171171547 is a wasteful number, since it uses less digits than its factorization.

745171171547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16883.

The product of its digits is 960400, while the sum is 50.

The spelling of 745171171547 in words is "seven hundred forty-five billion, one hundred seventy-one million, one hundred seventy-one thousand, five hundred forty-seven".