1380637280813 has 48 divisors (see below), whose sum is σ = 1679825271600. Its totient is φ = 1129962516480.

The previous prime is 1380637280801. The next prime is 1380637280833. The reversal of 1380637280813 is 3180827360831.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 57762354244 + 1322874926569 = 240338^2 + 1150163^2 .

It is not a de Polignac number, because 1380637280813 - 2⁶ = 1380637280749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1380637280833) 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 47 ways as a sum of consecutive naturals, for example, 235560503 + ... + 235566363.

It is an arithmetic number, because the mean of its divisors is an integer number (34996359825).

Almost surely, 2^{1380637280813} is an apocalyptic number.

It is an amenable number.

1380637280813 is a deficient number, since it is larger than the sum of its proper divisors (299187990787).

1380637280813 is a wasteful number, since it uses less digits than its factorization.

1380637280813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710 (or 7703 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 1380637280813 in words is "one trillion, three hundred eighty billion, six hundred thirty-seven million, two hundred eighty thousand, eight hundred thirteen".