1337740381387 has 2 divisors, whose sum is σ = 1337740381388. Its totient is φ = 1337740381386.

The previous prime is 1337740381381. The next prime is 1337740381427. The reversal of 1337740381387 is 7831830477331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1337740381387 - 2¹⁹ = 1337739857099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1337740381381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668870190693 + 668870190694.

It is an arithmetic number, because the mean of its divisors is an integer number (668870190694).

Almost surely, 2^{1337740381387} is an apocalyptic number.

1337740381387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1337740381387 is an equidigital number, since it uses as much as digits as its factorization.

1337740381387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7112448, while the sum is 55.

The spelling of 1337740381387 in words is "one trillion, three hundred thirty-seven billion, seven hundred forty million, three hundred eighty-one thousand, three hundred eighty-seven".