172757285887 has 8 divisors (see below), whose sum is σ = 172869610880. Its totient is φ = 172645003800.

The previous prime is 172757285867. The next prime is 172757285893. The reversal of 172757285887 is 788582757271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172757285887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172757285837) 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 7 ways as a sum of consecutive naturals, for example, 11865262 + ... + 11879812.

It is an arithmetic number, because the mean of its divisors is an integer number (21608701360).

Almost surely, 2^172757285887 is an apocalyptic number.

172757285887 is a deficient number, since it is larger than the sum of its proper divisors (112324993).

172757285887 is a wasteful number, since it uses less digits than its factorization.

172757285887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21453.

The product of its digits is 122931200, while the sum is 67.

The spelling of 172757285887 in words is "one hundred seventy-two billion, seven hundred fifty-seven million, two hundred eighty-five thousand, eight hundred eighty-seven".