1379578273361 has 2 divisors, whose sum is σ = 1379578273362. Its totient is φ = 1379578273360.

The previous prime is 1379578273343. The next prime is 1379578273373. The reversal of 1379578273361 is 1633728759731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1378144515136 + 1433758225 = 1173944^2 + 37865^2 .

It is a cyclic number.

It is not a de Polignac number, because 1379578273361 - 2¹⁰ = 1379578272337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1379578273294 and 1379578273303.

It is not a weakly prime, because it can be changed into another prime (1379578273331) by changing a digit.

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 as a sum of consecutive naturals, namely, 689789136680 + 689789136681.

It is an arithmetic number, because the mean of its divisors is an integer number (689789136681).

Almost surely, 2^{1379578273361} is an apocalyptic number.

It is an amenable number.

1379578273361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1379578273361 is an equidigital number, since it uses as much as digits as its factorization.

1379578273361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 62.

The spelling of 1379578273361 in words is "one trillion, three hundred seventy-nine billion, five hundred seventy-eight million, two hundred seventy-three thousand, three hundred sixty-one".