11723710673 has 4 divisors (see below), whose sum is σ = 12233437248. Its totient is φ = 11213984100.

The previous prime is 11723710667. The next prime is 11723710729. The reversal of 11723710673 is 37601732711.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37601732711 = 983 ⋅38252017.

It is a cyclic number.

It is not a de Polignac number, because 11723710673 - 2¹⁰ = 11723709649 is a prime.

It is a super-2 number, since 2×11723710673² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11723710613) 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, 254863253 + ... + 254863298.

It is an arithmetic number, because the mean of its divisors is an integer number (3058359312).

Almost surely, 2^11723710673 is an apocalyptic number.

It is an amenable number.

11723710673 is a deficient number, since it is larger than the sum of its proper divisors (509726575).

11723710673 is an equidigital number, since it uses as much as digits as its factorization.

11723710673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509726574.

The product of its (nonzero) digits is 37044, while the sum is 38.

The spelling of 11723710673 in words is "eleven billion, seven hundred twenty-three million, seven hundred ten thousand, six hundred seventy-three".