172427542320 has 160 divisors (see below), whose sum is σ = 585444029184. Its totient is φ = 41633920000.

The previous prime is 172427542267. The next prime is 172427542321. The reversal of 172427542320 is 23245724271.

It is not an unprimeable number, because it can be changed into a prime (172427542321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 532534 + ... + 792746.

Almost surely, 2^172427542320 is an apocalyptic number.

172427542320 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 172427542320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292722014592).

172427542320 is an abundant number, since it is smaller than the sum of its proper divisors (413016486864).

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

172427542320 is a wasteful number, since it uses less digits than its factorization.

172427542320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260491 (or 260485 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 172427542320 in words is "one hundred seventy-two billion, four hundred twenty-seven million, five hundred forty-two thousand, three hundred twenty".