18838055612 has 12 divisors (see below), whose sum is σ = 32968721016. Its totient is φ = 9418421040.

The previous prime is 18838055591. The next prime is 18838055633. The reversal of 18838055612 is 21655083881.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18838055591) and next prime (18838055633).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 77843 + ... + 209130.

It is an arithmetic number, because the mean of its divisors is an integer number (2747393418).

Almost surely, 2^18838055612 is an apocalyptic number.

It is an amenable number.

18838055612 is a deficient number, since it is larger than the sum of its proper divisors (14130665404).

18838055612 is a wasteful number, since it uses less digits than its factorization.

18838055612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303388 (or 303386 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 47.

The spelling of 18838055612 in words is "eighteen billion, eight hundred thirty-eight million, fifty-five thousand, six hundred twelve".