2173542323743 has 12 divisors (see below), whose sum is σ = 2587206527400. Its totient is φ = 1819709850672.

The previous prime is 2173542323731. The next prime is 2173542323747. The reversal of 2173542323743 is 3473232453712.

It is a de Polignac number, because none of the positive numbers 2^k-2173542323743 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2173542323693 and 2173542323702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2173542323747) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515788668 + ... + 515792881.

It is an arithmetic number, because the mean of its divisors is an integer number (215600543950).

Almost surely, 2^{2173542323743} is an apocalyptic number.

2173542323743 is a deficient number, since it is larger than the sum of its proper divisors (413664203657).

2173542323743 is a wasteful number, since it uses less digits than its factorization.

2173542323743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031581606 (or 1031581599 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 46.

The spelling of 2173542323743 in words is "two trillion, one hundred seventy-three billion, five hundred forty-two million, three hundred twenty-three thousand, seven hundred forty-three".