2018701621328 has 60 divisors (see below), whose sum is σ = 4557374723412. Its totient is φ = 863718105600.

The previous prime is 2018701621283. The next prime is 2018701621357. The reversal of 2018701621328 is 8231261078102.

It can be written as a sum of positive squares in 2 ways, for example, as 1050272429584 + 968429191744 = 1024828^2 + 984088^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1670975 + ... + 2613342.

Almost surely, 2^{2018701621328} is an apocalyptic number.

2018701621328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2018701621328 is an abundant number, since it is smaller than the sum of its proper divisors (2538673102084).

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

2018701621328 is a wasteful number, since it uses less digits than its factorization.

2018701621328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4284940 (or 4284927 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 2018701621328 in words is "two trillion, eighteen billion, seven hundred one million, six hundred twenty-one thousand, three hundred twenty-eight".