1380946968769 has 9 divisors (see below), whose sum is σ = 1385286208873. Its totient is φ = 1376621289472.

The previous prime is 1380946968749. The next prime is 1380946968773. The reversal of 1380946968769 is 9678696490831.

The square root of 1380946968769 is 1175137.

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

It can be written as a sum of positive squares in 4 ways, for example, as 57324330625 + 1323622638144 = 239425^2 + 1150488^2 .

It is not a de Polignac number, because 1380946968769 - 2³¹ = 1378799485121 is a prime.

It is a super-2 number, since 2×1380946968769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1380946968695 and 1380946968704.

It is not an unprimeable number, because it can be changed into a prime (1380946968749) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 414821697 + ... + 414825025.

Almost surely, 2^{1380946968769} is an apocalyptic number.

1380946968769 is the 1175137-th square number.

1380946968769 is the 587569-th centered octagonal number.

It is an amenable number.

1380946968769 is a deficient number, since it is larger than the sum of its proper divisors (4339240104).

1380946968769 is an frugal number, since it uses more digits than its factorization.

1380946968769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7364 (or 3682 counting only the distinct ones).

The product of its (nonzero) digits is 846526464, while the sum is 76.

The spelling of 1380946968769 in words is "one trillion, three hundred eighty billion, nine hundred forty-six million, nine hundred sixty-eight thousand, seven hundred sixty-nine".