172880495040 has 336 divisors, whose sum is σ = 613819163520. Its totient is φ = 40884019200.

The previous prime is 172880495033. The next prime is 172880495087. The reversal of 172880495040 is 40594088271.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17746491 + ... + 17756229.

Almost surely, 2^172880495040 is an apocalyptic number.

172880495040 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 172880495040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306909581760).

172880495040 is an abundant number, since it is smaller than the sum of its proper divisors (440938668480).

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

172880495040 is a wasteful number, since it uses less digits than its factorization.

172880495040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9852 (or 9801 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 172880495040 in words is "one hundred seventy-two billion, eight hundred eighty million, four hundred ninety-five thousand, forty".