18965089842384 has 80 divisors (see below), whose sum is σ = 55998421764480. Its totient is φ = 5417992089600.

The previous prime is 18965089842383. The next prime is 18965089842389. The reversal of 18965089842384 is 48324898056981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18965089842383) 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, 133017 + ... + 6160184.

It is an arithmetic number, because the mean of its divisors is an integer number (699980272056).

Almost surely, 2^{18965089842384} is an apocalyptic number.

18965089842384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

18965089842384 is an abundant number, since it is smaller than the sum of its proper divisors (37033331922096).

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

18965089842384 is a wasteful number, since it uses less digits than its factorization.

18965089842384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302188 (or 6302182 counting only the distinct ones).

The product of its (nonzero) digits is 955514880, while the sum is 75.

The spelling of 18965089842384 in words is "eighteen trillion, nine hundred sixty-five billion, eighty-nine million, eight hundred forty-two thousand, three hundred eighty-four".