18624031336 has 16 divisors (see below), whose sum is σ = 35055938340. Its totient is φ = 9275781120.

The previous prime is 18624031319. The next prime is 18624031337. The reversal of 18624031336 is 63313042681.

It can be written as a sum of positive squares in 2 ways, for example, as 17610882436 + 1013148900 = 132706^2 + 31830^2 .

It is a junction number, because it is equal to n+sod(n) for n = 18624031295 and 18624031304.

It is not an unprimeable number, because it can be changed into a prime (18624031337) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4527135 + ... + 4531246.

Almost surely, 2^18624031336 is an apocalyptic number.

It is an amenable number.

18624031336 is a deficient number, since it is larger than the sum of its proper divisors (16431907004).

18624031336 is a wasteful number, since it uses less digits than its factorization.

18624031336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058644 (or 9058640 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 18624031336 in words is "eighteen billion, six hundred twenty-four million, thirty-one thousand, three hundred thirty-six".