1988348167744 has 21 divisors (see below), whose sum is σ = 3945650780641. Its totient is φ = 994168443520.

The previous prime is 1988348167699. The next prime is 1988348167789. The reversal of 1988348167744 is 4477618438891.

The square root of 1988348167744 is 1410088.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (1988348167699) and next prime (1988348167789).

It can be written as a sum of positive squares in only one way, i.e., 1152805921344 + 835542246400 = 1073688^2 + 914080^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11192574 + ... + 11368834.

Almost surely, 2^{1988348167744} is an apocalyptic number.

1988348167744 is the 1410088-th square number.

It is an amenable number.

1988348167744 is a deficient number, since it is larger than the sum of its proper divisors (1957302612897).

1988348167744 is an frugal number, since it uses more digits than its factorization.

1988348167744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352534 (or 176263 counting only the distinct ones).

The product of its digits is 260112384, while the sum is 70.

The spelling of 1988348167744 in words is "one trillion, nine hundred eighty-eight billion, three hundred forty-eight million, one hundred sixty-seven thousand, seven hundred forty-four".