171572888872 has 64 divisors (see below), whose sum is σ = 409264848000. Its totient is φ = 66846568320.

The previous prime is 171572888863. The next prime is 171572888873. The reversal of 171572888872 is 278888275171.

It is a super-2 number, since 2×171572888872² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (171572888873) 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 15 ways as a sum of consecutive naturals, for example, 2811933 + ... + 2872300.

It is an arithmetic number, because the mean of its divisors is an integer number (6394763250).

Almost surely, 2^171572888872 is an apocalyptic number.

It is an amenable number.

171572888872 is an abundant number, since it is smaller than the sum of its proper divisors (237691959128).

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

171572888872 is a wasteful number, since it uses less digits than its factorization.

171572888872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5684271 (or 5684253 counting only the distinct ones).

The product of its digits is 28098560, while the sum is 64.

The spelling of 171572888872 in words is "one hundred seventy-one billion, five hundred seventy-two million, eight hundred eighty-eight thousand, eight hundred seventy-two".