23645188643 has 8 divisors (see below), whose sum is σ = 23785936416. Its totient is φ = 23504488000.

The previous prime is 23645188639. The next prime is 23645188681. The reversal of 23645188643 is 34688154632.

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 23645188643 - 2² = 23645188639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23645188591 and 23645188600.

It is not an unprimeable number, because it can be changed into a prime (23645188043) 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, 1957703 + ... + 1969743.

It is an arithmetic number, because the mean of its divisors is an integer number (2973242052).

Almost surely, 2^23645188643 is an apocalyptic number.

23645188643 is a deficient number, since it is larger than the sum of its proper divisors (140747773).

23645188643 is a wasteful number, since it uses less digits than its factorization.

23645188643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23565.

The product of its digits is 3317760, while the sum is 50.

The spelling of 23645188643 in words is "twenty-three billion, six hundred forty-five million, one hundred eighty-eight thousand, six hundred forty-three".