2172577152928 has 144 divisors (see below), whose sum is σ = 5294998537920. Its totient is φ = 859196602368.

The previous prime is 2172577152923. The next prime is 2172577152971. The reversal of 2172577152928 is 8292517752712.

It is not an unprimeable number, because it can be changed into a prime (2172577152923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142671651 + ... + 142686877.

It is an arithmetic number, because the mean of its divisors is an integer number (36770823180).

Almost surely, 2^{2172577152928} is an apocalyptic number.

2172577152928 is a gapful number since it is divisible by the number (28) 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 2172577152928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2647499268960).

2172577152928 is an abundant number, since it is smaller than the sum of its proper divisors (3122421384992).

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

2172577152928 is a wasteful number, since it uses less digits than its factorization.

2172577152928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19039 (or 19018 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 58.

The spelling of 2172577152928 in words is "two trillion, one hundred seventy-two billion, five hundred seventy-seven million, one hundred fifty-two thousand, nine hundred twenty-eight".