1021943071744 has 99 divisors (see below), whose sum is σ = 2376947600757. Its totient is φ = 437878554624.

The previous prime is 1021943071733. The next prime is 1021943071783. The reversal of 1021943071744 is 4471703491201.

The square root of 1021943071744 is 1010912.

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

It can be written as a sum of positive squares in only one way, i.e., 452838400 + 1021490233344 = 21280^2 + 1010688^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021943071744.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 226442032 + ... + 226446544.

Almost surely, 2^{1021943071744} is an apocalyptic number.

1021943071744 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1021943071744 is the 1010912-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021943071744

1021943071744 is an abundant number, since it is smaller than the sum of its proper divisors (1355004529013).

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

1021943071744 is an frugal number, since it uses more digits than its factorization.

1021943071744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9060 (or 4522 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 1021943071744 in words is "one trillion, twenty-one billion, nine hundred forty-three million, seventy-one thousand, seven hundred forty-four".