23879927089 has 2 divisors, whose sum is σ = 23879927090. Its totient is φ = 23879927088.

The previous prime is 23879927087. The next prime is 23879927129. The reversal of 23879927089 is 98072997832.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21874410000 + 2005517089 = 147900^2 + 44783^2 .

It is a cyclic number.

It is not a de Polignac number, because 23879927089 - 2¹ = 23879927087 is a prime.

Together with 23879927087, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 23879927089.

It is not a weakly prime, because it can be changed into another prime (23879927087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11939963544 + 11939963545.

It is an arithmetic number, because the mean of its divisors is an integer number (11939963545).

Almost surely, 2^23879927089 is an apocalyptic number.

It is an amenable number.

23879927089 is a deficient number, since it is larger than the sum of its proper divisors (1).

23879927089 is an equidigital number, since it uses as much as digits as its factorization.

23879927089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 23879927089 in words is "twenty-three billion, eight hundred seventy-nine million, nine hundred twenty-seven thousand, eighty-nine".