172622820648338 has 16 divisors (see below), whose sum is σ = 260824919114880. Its totient is φ = 85681184118816.

The previous prime is 172622820648323. The next prime is 172622820648373. The reversal of 172622820648338 is 833846028226271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214442483 + ... + 215245961.

It is an arithmetic number, because the mean of its divisors is an integer number (16301557444680).

Almost surely, 2^{172622820648338} is an apocalyptic number.

172622820648338 is a deficient number, since it is larger than the sum of its proper divisors (88202098466542).

172622820648338 is a wasteful number, since it uses less digits than its factorization.

172622820648338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587721.

The product of its (nonzero) digits is 74317824, while the sum is 62.

The spelling of 172622820648338 in words is "one hundred seventy-two trillion, six hundred twenty-two billion, eight hundred twenty million, six hundred forty-eight thousand, three hundred thirty-eight".