18102982499 has 16 divisors (see below), whose sum is σ = 21191976960. Its totient is φ = 15140442240.

The previous prime is 18102982459. The next prime is 18102982501. The reversal of 18102982499 is 99428920181.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-18102982499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18102982499.

It is not an unprimeable number, because it can be changed into a prime (18102982409) 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 15 ways as a sum of consecutive naturals, for example, 267947 + ... + 328635.

It is an arithmetic number, because the mean of its divisors is an integer number (1324498560).

Almost surely, 2^18102982499 is an apocalyptic number.

18102982499 is a deficient number, since it is larger than the sum of its proper divisors (3088994461).

18102982499 is an equidigital number, since it uses as much as digits as its factorization.

18102982499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61730.

The product of its (nonzero) digits is 746496, while the sum is 53.

The spelling of 18102982499 in words is "eighteen billion, one hundred two million, nine hundred eighty-two thousand, four hundred ninety-nine".