23424390851 has 2 divisors, whose sum is σ = 23424390852. Its totient is φ = 23424390850.

The previous prime is 23424390839. The next prime is 23424390881. The reversal of 23424390851 is 15809342432.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23424390851 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23424390799 and 23424390808.

It is not a weakly prime, because it can be changed into another prime (23424390811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11712195425 + 11712195426.

It is an arithmetic number, because the mean of its divisors is an integer number (11712195426).

Almost surely, 2^23424390851 is an apocalyptic number.

23424390851 is a deficient number, since it is larger than the sum of its proper divisors (1).

23424390851 is an equidigital number, since it uses as much as digits as its factorization.

23424390851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 23424390851 in words is "twenty-three billion, four hundred twenty-four million, three hundred ninety thousand, eight hundred fifty-one".