1393372489744 has 45 divisors (see below), whose sum is σ = 2867969277597. Its totient is φ = 655666927872.

The previous prime is 1393372489741. The next prime is 1393372489783. The reversal of 1393372489744 is 4479842733931.

It is a happy number.

The square root of 1393372489744 is 1180412.

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., 1084805571600 + 308566918144 = 1041540^2 + 555488^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393372489741) by changing a digit.

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, 80259337 + ... + 80276695.

Almost surely, 2^{1393372489744} is an apocalyptic number.

1393372489744 is the 1180412-nd square number.

It is an amenable number.

1393372489744 is an abundant number, since it is smaller than the sum of its proper divisors (1474596787853).

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

1393372489744 is an frugal number, since it uses more digits than its factorization.

1393372489744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34760 (or 17378 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 64.

Multiplying 1393372489744 by its sum of digits (64), we get a square (89175839343616 = 9443296²).

The spelling of 1393372489744 in words is "one trillion, three hundred ninety-three billion, three hundred seventy-two million, four hundred eighty-nine thousand, seven hundred forty-four".