23344581887 has 4 divisors (see below), whose sum is σ = 25466816616. Its totient is φ = 21222347160.

The previous prime is 23344581833. The next prime is 23344581991. The reversal of 23344581887 is 78818544332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23344581887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23344581187) 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, 1061117348 + ... + 1061117369.

It is an arithmetic number, because the mean of its divisors is an integer number (6366704154).

Almost surely, 2^23344581887 is an apocalyptic number.

23344581887 is a deficient number, since it is larger than the sum of its proper divisors (2122234729).

23344581887 is a wasteful number, since it uses less digits than its factorization.

23344581887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122234728.

The product of its digits is 5160960, while the sum is 53.

The spelling of 23344581887 in words is "twenty-three billion, three hundred forty-four million, five hundred eighty-one thousand, eight hundred eighty-seven".