23421682939 has 2 divisors, whose sum is σ = 23421682940. Its totient is φ = 23421682938.

The previous prime is 23421682859. The next prime is 23421682993. The reversal of 23421682939 is 93928612432.

Together with next prime (23421682993) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23421682939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23421682892 and 23421682901.

It is not a weakly prime, because it can be changed into another prime (23421683939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710841469 + 11710841470.

It is an arithmetic number, because the mean of its divisors is an integer number (11710841470).

Almost surely, 2^23421682939 is an apocalyptic number.

23421682939 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421682939 is an equidigital number, since it uses as much as digits as its factorization.

23421682939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 49.

The spelling of 23421682939 in words is "twenty-three billion, four hundred twenty-one million, six hundred eighty-two thousand, nine hundred thirty-nine".