23490697859 has 2 divisors, whose sum is σ = 23490697860. Its totient is φ = 23490697858.

The previous prime is 23490697849. The next prime is 23490697933. The reversal of 23490697859 is 95879609432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23490697859 is a prime.

It is not a weakly prime, because it can be changed into another prime (23490697819) 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, 11745348929 + 11745348930.

It is an arithmetic number, because the mean of its divisors is an integer number (11745348930).

Almost surely, 2^23490697859 is an apocalyptic number.

23490697859 is a deficient number, since it is larger than the sum of its proper divisors (1).

23490697859 is an equidigital number, since it uses as much as digits as its factorization.

23490697859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 23490697859 in words is "twenty-three billion, four hundred ninety million, six hundred ninety-seven thousand, eight hundred fifty-nine".