23655785389 has 8 divisors (see below), whose sum is σ = 23696644608. Its totient is φ = 23614950480.

The previous prime is 23655785383. The next prime is 23655785423. The reversal of 23655785389 is 98358755632.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23655785389 - 2¹¹ = 23655783341 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 (23655785383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3908964 + ... + 3915010.

It is an arithmetic number, because the mean of its divisors is an integer number (2962080576).

Almost surely, 2^23655785389 is an apocalyptic number.

It is an amenable number.

23655785389 is a deficient number, since it is larger than the sum of its proper divisors (40859219).

23655785389 is an equidigital number, since it uses as much as digits as its factorization.

23655785389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12155.

The product of its digits is 54432000, while the sum is 61.

The spelling of 23655785389 in words is "twenty-three billion, six hundred fifty-five million, seven hundred eighty-five thousand, three hundred eighty-nine".