2173025880 has 160 divisors (see below), whose sum is σ = 7362685440. Its totient is φ = 574801920.

The previous prime is 2173025857. The next prime is 2173025891. The reversal of 2173025880 is 885203712.

2173025880 is a `hidden beast` number, since 2 + 1 + 73 + 0 + 2 + 588 + 0 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 408840 + ... + 414120.

It is an arithmetic number, because the mean of its divisors is an integer number (46016784).

Almost surely, 2^2173025880 is an apocalyptic number.

2173025880 is a gapful number since it is divisible by the number (20) 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 2173025880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3681342720).

2173025880 is an abundant number, since it is smaller than the sum of its proper divisors (5189659560).

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

2173025880 is a wasteful number, since it uses less digits than its factorization.

2173025880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5431 (or 5418 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 2173025880 is about 46615.7256727813. The cubic root of 2173025880 is about 1295.2540717833.

The spelling of 2173025880 in words is "two billion, one hundred seventy-three million, twenty-five thousand, eight hundred eighty".