172828470903 has 16 divisors (see below), whose sum is σ = 255647664000. Its totient is φ = 102969195680.

The previous prime is 172828470823. The next prime is 172828470907. The reversal of 172828470903 is 309074828271.

It is a cyclic number.

It is not a de Polignac number, because 172828470903 - 2¹² = 172828466807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172828470907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44381328 + ... + 44385221.

It is an arithmetic number, because the mean of its divisors is an integer number (15977979000).

Almost surely, 2^172828470903 is an apocalyptic number.

172828470903 is a deficient number, since it is larger than the sum of its proper divisors (82819193097).

172828470903 is a wasteful number, since it uses less digits than its factorization.

172828470903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88766622.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 172828470903 in words is "one hundred seventy-two billion, eight hundred twenty-eight million, four hundred seventy thousand, nine hundred three".