18732459959 has 2 divisors, whose sum is σ = 18732459960. Its totient is φ = 18732459958.

The previous prime is 18732459901. The next prime is 18732459971. The reversal of 18732459959 is 95995423781.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18732459959 - 2¹⁶ = 18732394423 is a prime.

It is a super-2 number, since 2×18732459959² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18732459359) 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, 9366229979 + 9366229980.

It is an arithmetic number, because the mean of its divisors is an integer number (9366229980).

Almost surely, 2^18732459959 is an apocalyptic number.

18732459959 is a deficient number, since it is larger than the sum of its proper divisors (1).

18732459959 is an equidigital number, since it uses as much as digits as its factorization.

18732459959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24494400, while the sum is 62.

The spelling of 18732459959 in words is "eighteen billion, seven hundred thirty-two million, four hundred fifty-nine thousand, nine hundred fifty-nine".