18154029812 has 48 divisors (see below), whose sum is σ = 34431868800. Its totient is φ = 8349264000.

The previous prime is 18154029811. The next prime is 18154029821. The reversal of 18154029812 is 21892045181.

It is a self number, because there is not a number n which added to its sum of digits gives 18154029812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18154029811) 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 15 ways as a sum of consecutive naturals, for example, 656114 + ... + 683222.

It is an arithmetic number, because the mean of its divisors is an integer number (717330600).

Almost surely, 2^18154029812 is an apocalyptic number.

It is an amenable number.

18154029812 is a deficient number, since it is larger than the sum of its proper divisors (16277838988).

18154029812 is a wasteful number, since it uses less digits than its factorization.

18154029812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27416 (or 27414 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 41.

The spelling of 18154029812 in words is "eighteen billion, one hundred fifty-four million, twenty-nine thousand, eight hundred twelve".