172098975749568 has 112 divisors (see below), whose sum is σ = 520403877517824. Its totient is φ = 49170251934720.

The previous prime is 172098975749557. The next prime is 172098975749609. The reversal of 172098975749568 is 865947579890271.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75535213 + ... + 77780243.

Almost surely, 2^{172098975749568} is an apocalyptic number.

It is an amenable number.

172098975749568 is an abundant number, since it is smaller than the sum of its proper divisors (348304901768256).

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

172098975749568 is a wasteful number, since it uses less digits than its factorization.

172098975749568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2302090 (or 2302080 counting only the distinct ones).

The product of its (nonzero) digits is 19203609600, while the sum is 87.

The spelling of 172098975749568 in words is "one hundred seventy-two trillion, ninety-eight billion, nine hundred seventy-five million, seven hundred forty-nine thousand, five hundred sixty-eight".