18012955326 has 16 divisors (see below), whose sum is σ = 36027260544. Its totient is φ = 6004093464.

The previous prime is 18012955321. The next prime is 18012955327. The reversal of 18012955326 is 62355921081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18012955321) 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 7 ways as a sum of consecutive naturals, for example, 226785 + ... + 295731.

It is an arithmetic number, because the mean of its divisors is an integer number (2251703784).

Almost surely, 2^18012955326 is an apocalyptic number.

18012955326 is an abundant number, since it is smaller than the sum of its proper divisors (18014305218).

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

18012955326 is a wasteful number, since it uses less digits than its factorization.

18012955326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112495.

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 18012955326 in words is "eighteen billion, twelve million, nine hundred fifty-five thousand, three hundred twenty-six".