18014897993628 has 12 divisors (see below), whose sum is σ = 42034761985160. Its totient is φ = 6004965997872.

The previous prime is 18014897993621. The next prime is 18014897993629. The reversal of 18014897993628 is 82639979841081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 18014897993628.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18014897993621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 750620749723 + ... + 750620749746.

Almost surely, 2^{18014897993628} is an apocalyptic number.

It is an amenable number.

18014897993628 is an abundant number, since it is smaller than the sum of its proper divisors (24019863991532).

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

18014897993628 is a wasteful number, since it uses less digits than its factorization.

18014897993628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501241499476 (or 1501241499474 counting only the distinct ones).

The product of its (nonzero) digits is 376233984, while the sum is 75.

The spelling of 18014897993628 in words is "eighteen trillion, fourteen billion, eight hundred ninety-seven million, nine hundred ninety-three thousand, six hundred twenty-eight".