172088715273 has 8 divisors (see below), whose sum is σ = 229453547136. Its totient is φ = 114724846800.

The previous prime is 172088715221. The next prime is 172088715287. The reversal of 172088715273 is 372517880271.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172088715273 - 2⁸ = 172088715017 is a prime.

It is a super-2 number, since 2×172088715273² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (172088765273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 513303 + ... + 779523.

It is an arithmetic number, because the mean of its divisors is an integer number (28681693392).

Almost surely, 2^172088715273 is an apocalyptic number.

It is an amenable number.

172088715273 is a deficient number, since it is larger than the sum of its proper divisors (57364831863).

172088715273 is a wasteful number, since it uses less digits than its factorization.

172088715273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481695.

The product of its (nonzero) digits is 1317120, while the sum is 51.

The spelling of 172088715273 in words is "one hundred seventy-two billion, eighty-eight million, seven hundred fifteen thousand, two hundred seventy-three".