172708027648 has 324 divisors, whose sum is σ = 417995628960. Its totient is φ = 70976176128.

The previous prime is 172708027627. The next prime is 172708027651. The reversal of 172708027648 is 846720807271.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 172708027595 and 172708027604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 237562261 + ... + 237562987.

Almost surely, 2^172708027648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172708027648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208997814480).

172708027648 is an abundant number, since it is smaller than the sum of its proper divisors (245287601312).

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

172708027648 is a wasteful number, since it uses less digits than its factorization.

172708027648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 2107392, while the sum is 52.

The spelling of 172708027648 in words is "one hundred seventy-two billion, seven hundred eight million, twenty-seven thousand, six hundred forty-eight".