172322123704 has 64 divisors (see below), whose sum is σ = 368500285440. Its totient is φ = 75064788480.

The previous prime is 172322123671. The next prime is 172322123711. The reversal of 172322123704 is 407321223271.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 172322123704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 791584 + ... + 985519.

It is an arithmetic number, because the mean of its divisors is an integer number (5757816960).

Almost surely, 2^172322123704 is an apocalyptic number.

It is an amenable number.

172322123704 is an abundant number, since it is smaller than the sum of its proper divisors (196178161736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172322123704 is a wasteful number, since it uses less digits than its factorization.

172322123704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777180 (or 1777176 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

Adding to 172322123704 its reverse (407321223271), we get a palindrome (579643346975).

The spelling of 172322123704 in words is "one hundred seventy-two billion, three hundred twenty-two million, one hundred twenty-three thousand, seven hundred four".