18993064759 has 2 divisors, whose sum is σ = 18993064760. Its totient is φ = 18993064758.

The previous prime is 18993064711. The next prime is 18993064787. The reversal of 18993064759 is 95746039981.

It is a strong prime.

It is an emirp because it is prime and its reverse (95746039981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18993064759 - 2⁷ = 18993064631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18993064697 and 18993064706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18993064799) 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, 9496532379 + 9496532380.

It is an arithmetic number, because the mean of its divisors is an integer number (9496532380).

Almost surely, 2^18993064759 is an apocalyptic number.

18993064759 is a deficient number, since it is larger than the sum of its proper divisors (1).

18993064759 is an equidigital number, since it uses as much as digits as its factorization.

18993064759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 18993064759 in words is "eighteen billion, nine hundred ninety-three million, sixty-four thousand, seven hundred fifty-nine".