23005855867 has 2 divisors, whose sum is σ = 23005855868. Its totient is φ = 23005855866.

The previous prime is 23005855849. The next prime is 23005855949. The reversal of 23005855867 is 76855850032.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23005855867 - 2¹⁹ = 23005331579 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23005855867.

It is not a weakly prime, because it can be changed into another prime (23005855567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502927933 + 11502927934.

It is an arithmetic number, because the mean of its divisors is an integer number (11502927934).

Almost surely, 2^23005855867 is an apocalyptic number.

23005855867 is a deficient number, since it is larger than the sum of its proper divisors (1).

23005855867 is an equidigital number, since it uses as much as digits as its factorization.

23005855867 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016000, while the sum is 49.

The spelling of 23005855867 in words is "twenty-three billion, five million, eight hundred fifty-five thousand, eight hundred sixty-seven".