18817345102 has 16 divisors (see below), whose sum is σ = 28273600080. Its totient is φ = 9392827392.

The previous prime is 18817345081. The next prime is 18817345103. The reversal of 18817345102 is 20154371881.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18817345103) 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 in 7 ways as a sum of consecutive naturals, for example, 3717049 + ... + 3722107.

It is an arithmetic number, because the mean of its divisors is an integer number (1767100005).

Almost surely, 2^18817345102 is an apocalyptic number.

18817345102 is a deficient number, since it is larger than the sum of its proper divisors (9456254978).

18817345102 is a wasteful number, since it uses less digits than its factorization.

18817345102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7827.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 18817345102 in words is "eighteen billion, eight hundred seventeen million, three hundred forty-five thousand, one hundred two".