172888871730 has 16 divisors (see below), whose sum is σ = 414933292224. Its totient is φ = 46103699120.

The previous prime is 172888871723. The next prime is 172888871803. The reversal of 172888871730 is 37178888271.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 2881481166 + ... + 2881481225.

It is an arithmetic number, because the mean of its divisors is an integer number (25933330764).

Almost surely, 2^172888871730 is an apocalyptic number.

172888871730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

172888871730 is an abundant number, since it is smaller than the sum of its proper divisors (242044420494).

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

172888871730 is a wasteful number, since it uses less digits than its factorization.

172888871730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762962401.

The product of its (nonzero) digits is 8429568, while the sum is 60.

The spelling of 172888871730 in words is "one hundred seventy-two billion, eight hundred eighty-eight million, eight hundred seventy-one thousand, seven hundred thirty".