18158748305 has 32 divisors (see below), whose sum is σ = 24698390400. Its totient is φ = 12733258752.

The previous prime is 18158748277. The next prime is 18158748317. The reversal of 18158748305 is 50384785181.

It is a cyclic number.

It is not a de Polignac number, because 18158748305 - 2⁶ = 18158748241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2 + ... + 190571.

It is an arithmetic number, because the mean of its divisors is an integer number (771824700).

Almost surely, 2^18158748305 is an apocalyptic number.

It is an amenable number.

18158748305 is a deficient number, since it is larger than the sum of its proper divisors (6539642095).

18158748305 is a wasteful number, since it uses less digits than its factorization.

18158748305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190673.

The product of its (nonzero) digits is 1075200, while the sum is 50.

The spelling of 18158748305 in words is "eighteen billion, one hundred fifty-eight million, seven hundred forty-eight thousand, three hundred five".