2175703721493 has 4 divisors (see below), whose sum is σ = 2900938295328. Its totient is φ = 1450469147660.

The previous prime is 2175703721479. The next prime is 2175703721497. The reversal of 2175703721493 is 3941273075712.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2175703721493 - 2¹⁷ = 2175703590421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2175703721497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362617286913 + ... + 362617286918.

It is an arithmetic number, because the mean of its divisors is an integer number (725234573832).

Almost surely, 2^{2175703721493} is an apocalyptic number.

It is an amenable number.

2175703721493 is a deficient number, since it is larger than the sum of its proper divisors (725234573835).

2175703721493 is an equidigital number, since it uses as much as digits as its factorization.

2175703721493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725234573834.

The product of its (nonzero) digits is 2222640, while the sum is 51.

The spelling of 2175703721493 in words is "two trillion, one hundred seventy-five billion, seven hundred three million, seven hundred twenty-one thousand, four hundred ninety-three".