18358082063 has 32 divisors (see below), whose sum is σ = 19893620736. Its totient is φ = 16898289408.

The previous prime is 18358082051. The next prime is 18358082069. The reversal of 18358082063 is 36028085381.

It is a Cunningham number, because it is equal to 135492²-1.

It is a cyclic number.

It is not a de Polignac number, because 18358082063 - 2²⁴ = 18341304847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18358082069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21271970 + ... + 21272832.

It is an arithmetic number, because the mean of its divisors is an integer number (621675648).

Almost surely, 2^18358082063 is an apocalyptic number.

18358082063 is a deficient number, since it is larger than the sum of its proper divisors (1535538673).

18358082063 is a wasteful number, since it uses less digits than its factorization.

18358082063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1223.

The product of its (nonzero) digits is 276480, while the sum is 44.

The spelling of 18358082063 in words is "eighteen billion, three hundred fifty-eight million, eighty-two thousand, sixty-three".