23327727617 has 4 divisors (see below), whose sum is σ = 23446142676. Its totient is φ = 23209312560.

The previous prime is 23327727587. The next prime is 23327727659. The reversal of 23327727617 is 71672772332.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12230369281 + 11097358336 = 110591^2 + 105344^2 .

It is a cyclic number.

It is not a de Polignac number, because 23327727617 - 2⁸ = 23327727361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23327727697) 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, 59207234 + ... + 59207627.

It is an arithmetic number, because the mean of its divisors is an integer number (5861535669).

Almost surely, 2^23327727617 is an apocalyptic number.

It is an amenable number.

23327727617 is a deficient number, since it is larger than the sum of its proper divisors (118415059).

23327727617 is a wasteful number, since it uses less digits than its factorization.

23327727617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118415058.

The product of its digits is 1037232, while the sum is 47.

The spelling of 23327727617 in words is "twenty-three billion, three hundred twenty-seven million, seven hundred twenty-seven thousand, six hundred seventeen".