18508823245 has 16 divisors (see below), whose sum is σ = 24302957760. Its totient is φ = 13420281600.

The previous prime is 18508823243. The next prime is 18508823261. The reversal of 18508823245 is 54232880581.

It is not a de Polignac number, because 18508823245 - 2¹ = 18508823243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18508823195 and 18508823204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18508823243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490140 + ... + 526549.

It is an arithmetic number, because the mean of its divisors is an integer number (1518934860).

Almost surely, 2^18508823245 is an apocalyptic number.

It is an amenable number.

18508823245 is a deficient number, since it is larger than the sum of its proper divisors (5794134515).

18508823245 is a wasteful number, since it uses less digits than its factorization.

18508823245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017036.

The product of its (nonzero) digits is 614400, while the sum is 46.

It can be divided in two parts, 18508 and 823245, that added together give a triangular number (841753 = T₁₂₉₇).

The spelling of 18508823245 in words is "eighteen billion, five hundred eight million, eight hundred twenty-three thousand, two hundred forty-five".