2173654563712 has 48 divisors (see below), whose sum is σ = 4474521750600. Its totient is φ = 1051768277760.

The previous prime is 2173654563709. The next prime is 2173654563757.

2173654563712 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2173654563712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8712412 + ... + 8958427.

Almost surely, 2^{2173654563712} is an apocalyptic number.

It is an amenable number.

2173654563712 is an abundant number, since it is smaller than the sum of its proper divisors (2300867186888).

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

2173654563712 is an equidigital number, since it uses as much as digits as its factorization.

2173654563712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17670915 (or 17670872 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 52.

The spelling of 2173654563712 in words is "two trillion, one hundred seventy-three billion, six hundred fifty-four million, five hundred sixty-three thousand, seven hundred twelve".