172323758880 has 768 divisors, whose sum is σ = 781420953600. Its totient is φ = 34443325440.

The previous prime is 172323758839. The next prime is 172323758969. The reversal of 172323758880 is 88857323271.

172323758880 is a `hidden beast` number, since 1 + 7 + 23 + 2 + 37 + 588 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 7457745 + ... + 7480815.

It is an arithmetic number, because the mean of its divisors is an integer number (1017475200).

Almost surely, 2^172323758880 is an apocalyptic number.

172323758880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172323758880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (390710476800).

172323758880 is an abundant number, since it is smaller than the sum of its proper divisors (609097194720).

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

172323758880 is a wasteful number, since it uses less digits than its factorization.

172323758880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23134 (or 23120 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 172323758880 in words is "one hundred seventy-two billion, three hundred twenty-three million, seven hundred fifty-eight thousand, eight hundred eighty".