18473156226 has 48 divisors (see below), whose sum is σ = 46858750848. Its totient is φ = 5149310400.

The previous prime is 18473156203. The next prime is 18473156243. The reversal of 18473156226 is 62265137481.

18473156226 is a `hidden beast` number, since 1 + 8 + 4 + 7 + 3 + 15 + 622 + 6 = 666.

It is a super-3 number, since 3×18473156226³ (a number of 32 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1782790 + ... + 1793121.

It is an arithmetic number, because the mean of its divisors is an integer number (976223976).

Almost surely, 2^18473156226 is an apocalyptic number.

18473156226 is an abundant number, since it is smaller than the sum of its proper divisors (28385594622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18473156226 is a wasteful number, since it uses less digits than its factorization.

18473156226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575967 (or 3575964 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 18473156226 in words is "eighteen billion, four hundred seventy-three million, one hundred fifty-six thousand, two hundred twenty-six".