18021147013718 has 16 divisors (see below), whose sum is σ = 27963977610960. Its totient is φ = 8699824005600.

The previous prime is 18021147013717. The next prime is 18021147013741. The reversal of 18021147013718 is 81731074112081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18021147013717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14897588 + ... + 16061768.

It is an arithmetic number, because the mean of its divisors is an integer number (1747748600685).

Almost surely, 2^{18021147013718} is an apocalyptic number.

18021147013718 is a deficient number, since it is larger than the sum of its proper divisors (9942830597242).

18021147013718 is a wasteful number, since it uses less digits than its factorization.

18021147013718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431103.

The product of its (nonzero) digits is 75264, while the sum is 44.

The spelling of 18021147013718 in words is "eighteen trillion, twenty-one billion, one hundred forty-seven million, thirteen thousand, seven hundred eighteen".