1375992367489 has 2 divisors, whose sum is σ = 1375992367490. Its totient is φ = 1375992367488.

The previous prime is 1375992367469. The next prime is 1375992367523. The reversal of 1375992367489 is 9847632995731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1103356966464 + 272635401025 = 1050408^2 + 522145^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375992367489 - 2⁷ = 1375992367361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375992367469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687996183744 + 687996183745.

It is an arithmetic number, because the mean of its divisors is an integer number (687996183745).

Almost surely, 2^{1375992367489} is an apocalyptic number.

It is an amenable number.

1375992367489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375992367489 is an equidigital number, since it uses as much as digits as its factorization.

1375992367489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 617258880, while the sum is 73.

The spelling of 1375992367489 in words is "one trillion, three hundred seventy-five billion, nine hundred ninety-two million, three hundred sixty-seven thousand, four hundred eighty-nine".