2173790256960 has 448 divisors, whose sum is σ = 8151759834624. Its totient is φ = 480450969600.

The previous prime is 2173790256959. The next prime is 2173790257003. The reversal of 2173790256960 is 696520973712.

It is a tau number, because it is divible by the number of its divisors (448).

It is a self number, because there is not a number n which added to its sum of digits gives 2173790256960.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31098850 + ... + 31168670.

It is an arithmetic number, because the mean of its divisors is an integer number (18195892488).

Almost surely, 2^{2173790256960} is an apocalyptic number.

2173790256960 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 2173790256960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4075879917312).

2173790256960 is an abundant number, since it is smaller than the sum of its proper divisors (5977969577664).

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

2173790256960 is a wasteful number, since it uses less digits than its factorization.

2173790256960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70002 (or 69992 counting only the distinct ones).

The product of its (nonzero) digits is 8573040, while the sum is 57.

The spelling of 2173790256960 in words is "two trillion, one hundred seventy-three billion, seven hundred ninety million, two hundred fifty-six thousand, nine hundred sixty".