23867865838664 has 8 divisors (see below), whose sum is σ = 44752248447510. Its totient is φ = 11933932919328.

The previous prime is 23867865838657. The next prime is 23867865838679. The reversal of 23867865838664 is 46683856876832.

It can be written as a sum of positive squares in only one way, i.e., 22777157141764 + 1090708696900 = 4772542^2 + 1044370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1491741614909 + ... + 1491741614924.

Almost surely, 2^{23867865838664} is an apocalyptic number.

It is an amenable number.

23867865838664 is a deficient number, since it is larger than the sum of its proper divisors (20884382608846).

23867865838664 is a wasteful number, since it uses less digits than its factorization.

23867865838664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2983483229839 (or 2983483229835 counting only the distinct ones).

The product of its digits is 13377208320, while the sum is 80.

The spelling of 23867865838664 in words is "twenty-three trillion, eight hundred sixty-seven billion, eight hundred sixty-five million, eight hundred thirty-eight thousand, six hundred sixty-four".