18840113036641 has 16 divisors (see below), whose sum is σ = 20989291276800. Its totient is φ = 16790943532608.

The previous prime is 18840113036639. The next prime is 18840113036663. The reversal of 18840113036641 is 14663031104881.

It is a cyclic number.

It is not a de Polignac number, because 18840113036641 - 2¹ = 18840113036639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18840113036591 and 18840113036600.

It is not an unprimeable number, because it can be changed into a prime (18840113036671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28582120 + ... + 29233846.

It is an arithmetic number, because the mean of its divisors is an integer number (1311830704800).

Almost surely, 2^{18840113036641} is an apocalyptic number.

It is an amenable number.

18840113036641 is a deficient number, since it is larger than the sum of its proper divisors (2149178240159).

18840113036641 is a wasteful number, since it uses less digits than its factorization.

18840113036641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728448.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 18840113036641 in words is "eighteen trillion, eight hundred forty billion, one hundred thirteen million, thirty-six thousand, six hundred forty-one".