172428608553 has 8 divisors (see below), whose sum is σ = 234796403328. Its totient is φ = 112506609744.

The previous prime is 172428608479. The next prime is 172428608587. The reversal of 172428608553 is 355806824271.

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

It is not a de Polignac number, because 172428608553 - 2¹⁴ = 172428592169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172428608496 and 172428608505.

It is not an unprimeable number, because it can be changed into a prime (172428608453) 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, 611448826 + ... + 611449107.

It is an arithmetic number, because the mean of its divisors is an integer number (29349550416).

Almost surely, 2^172428608553 is an apocalyptic number.

It is an amenable number.

172428608553 is a deficient number, since it is larger than the sum of its proper divisors (62367794775).

172428608553 is a wasteful number, since it uses less digits than its factorization.

172428608553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222897983.

The product of its (nonzero) digits is 3225600, while the sum is 51.

The spelling of 172428608553 in words is "one hundred seventy-two billion, four hundred twenty-eight million, six hundred eight thousand, five hundred fifty-three".