18908385120048 has 80 divisors (see below), whose sum is σ = 49987555877376. Its totient is φ = 6156129127680.

The previous prime is 18908385120019. The next prime is 18908385120061. The reversal of 18908385120048 is 84002158380981.

It is a self number, because there is not a number n which added to its sum of digits gives 18908385120048.

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 15 ways as a sum of consecutive naturals, for example, 7427311 + ... + 9642702.

Almost surely, 2^{18908385120048} is an apocalyptic number.

It is an amenable number.

18908385120048 is an abundant number, since it is smaller than the sum of its proper divisors (31079170757328).

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

18908385120048 is a wasteful number, since it uses less digits than its factorization.

18908385120048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17070562 (or 17070556 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 57.

The spelling of 18908385120048 in words is "eighteen trillion, nine hundred eight billion, three hundred eighty-five million, one hundred twenty thousand, forty-eight".