2173040089920 has 336 divisors, whose sum is σ = 8546421312000. Its totient is φ = 496444612608.

The previous prime is 2173040089877. The next prime is 2173040089933. The reversal of 2173040089920 is 299800403712.

2173040089920 is a `hidden beast` number, since 217 + 3 + 0 + 400 + 8 + 9 + 9 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

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

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, 41563956 + ... + 41616204.

Almost surely, 2^{2173040089920} is an apocalyptic number.

2173040089920 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 2173040089920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4273210656000).

2173040089920 is an abundant number, since it is smaller than the sum of its proper divisors (6373381222080).

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

2173040089920 is a wasteful number, since it uses less digits than its factorization.

2173040089920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54342 (or 54329 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 2173040089920 in words is "two trillion, one hundred seventy-three billion, forty million, eighty-nine thousand, nine hundred twenty".