23641346646 has 12 divisors (see below), whose sum is σ = 51222917772. Its totient is φ = 7880448876.

The previous prime is 23641346629. The next prime is 23641346647. The reversal of 23641346646 is 64664314632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23641346647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 656704056 + ... + 656704091.

It is an arithmetic number, because the mean of its divisors is an integer number (4268576481).

Almost surely, 2^23641346646 is an apocalyptic number.

23641346646 is an abundant number, since it is smaller than the sum of its proper divisors (27581571126).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23641346646 is a wasteful number, since it uses less digits than its factorization.

23641346646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1313408155 (or 1313408152 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 45.

The spelling of 23641346646 in words is "twenty-three billion, six hundred forty-one million, three hundred forty-six thousand, six hundred forty-six".