23201744617 has 4 divisors (see below), whose sum is σ = 23203420240. Its totient is φ = 23200068996.

The previous prime is 23201744603. The next prime is 23201744633. The reversal of 23201744617 is 71644710232.

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 a de Polignac number, because none of the positive numbers 2^k-23201744617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23201744117) 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, 816867 + ... + 844792.

It is an arithmetic number, because the mean of its divisors is an integer number (5800855060).

Almost surely, 2^23201744617 is an apocalyptic number.

It is an amenable number.

23201744617 is a deficient number, since it is larger than the sum of its proper divisors (1675623).

23201744617 is a wasteful number, since it uses less digits than its factorization.

23201744617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1675622.

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 23201744617 in words is "twenty-three billion, two hundred one million, seven hundred forty-four thousand, six hundred seventeen".