18292018226 has 16 divisors (see below), whose sum is σ = 28156033080. Its totient is φ = 8907448320.

The previous prime is 18292018201. The next prime is 18292018247. The reversal of 18292018226 is 62281029281.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18291210025 + 808201 = 135245^2 + 899^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145991 + ... + 240618.

Almost surely, 2^18292018226 is an apocalyptic number.

18292018226 is a deficient number, since it is larger than the sum of its proper divisors (9864014854).

18292018226 is a wasteful number, since it uses less digits than its factorization.

18292018226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387229.

The product of its (nonzero) digits is 55296, while the sum is 41.

The spelling of 18292018226 in words is "eighteen billion, two hundred ninety-two million, eighteen thousand, two hundred twenty-six".