1381065529936 has 20 divisors (see below), whose sum is σ = 2705879798100. Its totient is φ = 682773969152.

The previous prime is 1381065529913. The next prime is 1381065529969. The reversal of 1381065529936 is 6399255601831.

It can be written as a sum of positive squares in 2 ways, for example, as 615195510336 + 765870019600 = 784344^2 + 875140^2 .

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 484923271 + ... + 484926118.

It is an arithmetic number, because the mean of its divisors is an integer number (135293989905).

Almost surely, 2^{1381065529936} is an apocalyptic number.

1381065529936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1381065529936 is a deficient number, since it is larger than the sum of its proper divisors (1324814268164).

1381065529936 is an equidigital number, since it uses as much as digits as its factorization.

1381065529936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969849486 (or 969849480 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 1381065529936 in words is "one trillion, three hundred eighty-one billion, sixty-five million, five hundred twenty-nine thousand, nine hundred thirty-six".