172393202880 has 896 divisors, whose sum is σ = 666163077120. Its totient is φ = 41803776000.

The previous prime is 172393202867. The next prime is 172393202899. The reversal of 172393202880 is 88202393271.

172393202880 is a `hidden beast` number, since 17 + 2 + 39 + 320 + 288 + 0 = 666.

It is a super-4 number, since 4×172393202880⁴ (a number of 46 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 636137145 + ... + 636137415.

Almost surely, 2^172393202880 is an apocalyptic number.

172393202880 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 172393202880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333081538560).

172393202880 is an abundant number, since it is smaller than the sum of its proper divisors (493769874240).

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

172393202880 is a wasteful number, since it uses less digits than its factorization.

172393202880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 172393202880 in words is "one hundred seventy-two billion, three hundred ninety-three million, two hundred two thousand, eight hundred eighty".