172887287286 has 16 divisors (see below), whose sum is σ = 395170942464. Its totient is φ = 49396367784.

The previous prime is 172887287281. The next prime is 172887287297. The reversal of 172887287286 is 682782788271.

It is a super-2 number, since 2×172887287286² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172887287281) 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 7 ways as a sum of consecutive naturals, for example, 2058181950 + ... + 2058182033.

It is an arithmetic number, because the mean of its divisors is an integer number (24698183904).

Almost surely, 2^172887287286 is an apocalyptic number.

172887287286 is an abundant number, since it is smaller than the sum of its proper divisors (222283655178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172887287286 is a wasteful number, since it uses less digits than its factorization.

172887287286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4116363995.

The product of its digits is 67436544, while the sum is 66.

The spelling of 172887287286 in words is "one hundred seventy-two billion, eight hundred eighty-seven million, two hundred eighty-seven thousand, two hundred eighty-six".