28571717173345 has 32 divisors (see below), whose sum is σ = 35432910437760. Its totient is φ = 22103424806400.

The previous prime is 28571717173339. The next prime is 28571717173393. The reversal of 28571717173345 is 54337171717582.

It is not a de Polignac number, because 28571717173345 - 2⁷ = 28571717173217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 511121437 + ... + 511177333.

It is an arithmetic number, because the mean of its divisors is an integer number (1107278451180).

Almost surely, 2^{28571717173345} is an apocalyptic number.

It is an amenable number.

28571717173345 is a deficient number, since it is larger than the sum of its proper divisors (6861193264415).

28571717173345 is a wasteful number, since it uses less digits than its factorization.

28571717173345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79585.

The product of its digits is 34574400, while the sum is 61.

The spelling of 28571717173345 in words is "twenty-eight trillion, five hundred seventy-one billion, seven hundred seventeen million, one hundred seventy-three thousand, three hundred forty-five".