2018463664720 has 80 divisors (see below), whose sum is σ = 4894254747648. Its totient is φ = 773285621760.

The previous prime is 2018463664681. The next prime is 2018463664753. The reversal of 2018463664720 is 274663648102.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3954784 + ... + 4435903.

Almost surely, 2^{2018463664720} is an apocalyptic number.

2018463664720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018463664720 is an abundant number, since it is smaller than the sum of its proper divisors (2875791082928).

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

2018463664720 is a wasteful number, since it uses less digits than its factorization.

2018463664720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390828 (or 8390822 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 2018463664720 in words is "two trillion, eighteen billion, four hundred sixty-three million, six hundred sixty-four thousand, seven hundred twenty".