18145818086 has 16 divisors (see below), whose sum is σ = 29892445200. Its totient is φ = 8192741280.

The previous prime is 18145818077. The next prime is 18145818127. The reversal of 18145818086 is 68081854181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2764541 + ... + 2771096.

It is an arithmetic number, because the mean of its divisors is an integer number (1868277825).

Almost surely, 2^18145818086 is an apocalyptic number.

18145818086 is a deficient number, since it is larger than the sum of its proper divisors (11746627114).

18145818086 is a wasteful number, since it uses less digits than its factorization.

18145818086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5535799.

The product of its (nonzero) digits is 491520, while the sum is 50.

The spelling of 18145818086 in words is "eighteen billion, one hundred forty-five million, eight hundred eighteen thousand, eighty-six".