172868439600 has 240 divisors, whose sum is σ = 620732964000. Its totient is φ = 45689978880.

The previous prime is 172868439589. The next prime is 172868439659. The reversal of 172868439600 is 6934868271.

172868439600 is a `hidden beast` number, since 1 + 7 + 28 + 6 + 8 + 4 + 3 + 9 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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 47 ways as a sum of consecutive naturals, for example, 1149576 + ... + 1291224.

It is an arithmetic number, because the mean of its divisors is an integer number (2586387350).

Almost surely, 2^172868439600 is an apocalyptic number.

172868439600 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 172868439600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310366482000).

172868439600 is an abundant number, since it is smaller than the sum of its proper divisors (447864524400).

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

172868439600 is a wasteful number, since it uses less digits than its factorization.

172868439600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141789 (or 141772 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 172868439600 in words is "one hundred seventy-two billion, eight hundred sixty-eight million, four hundred thirty-nine thousand, six hundred".