23639817671 has 2 divisors, whose sum is σ = 23639817672. Its totient is φ = 23639817670.

The previous prime is 23639817637. The next prime is 23639817713. The reversal of 23639817671 is 17671893632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23639817671 - 2²⁶ = 23572708807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23639217671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11819908835 + 11819908836.

It is an arithmetic number, because the mean of its divisors is an integer number (11819908836).

Almost surely, 2^23639817671 is an apocalyptic number.

23639817671 is a deficient number, since it is larger than the sum of its proper divisors (1).

23639817671 is an equidigital number, since it uses as much as digits as its factorization.

23639817671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 53.

The spelling of 23639817671 in words is "twenty-three billion, six hundred thirty-nine million, eight hundred seventeen thousand, six hundred seventy-one".