172289193676 has 6 divisors (see below), whose sum is σ = 301506088940. Its totient is φ = 86144596836.

The previous prime is 172289193467. The next prime is 172289193677. The reversal of 172289193676 is 676391982271.

172289193676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (172289193677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21536149206 + ... + 21536149213.

Almost surely, 2^172289193676 is an apocalyptic number.

It is an amenable number.

172289193676 is a deficient number, since it is larger than the sum of its proper divisors (129216895264).

172289193676 is a wasteful number, since it uses less digits than its factorization.

172289193676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43072298423 (or 43072298421 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 61.

The spelling of 172289193676 in words is "one hundred seventy-two billion, two hundred eighty-nine million, one hundred ninety-three thousand, six hundred seventy-six".