1365725381387 has 2 divisors, whose sum is σ = 1365725381388. Its totient is φ = 1365725381386.

The previous prime is 1365725381381. The next prime is 1365725381417. The reversal of 1365725381387 is 7831835275631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1365725381387 - 2²⁴ = 1365708604171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1365725381381) 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, 682862690693 + 682862690694.

It is an arithmetic number, because the mean of its divisors is an integer number (682862690694).

Almost surely, 2^{1365725381387} is an apocalyptic number.

1365725381387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1365725381387 is an equidigital number, since it uses as much as digits as its factorization.

1365725381387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25401600, while the sum is 59.

The spelling of 1365725381387 in words is "one trillion, three hundred sixty-five billion, seven hundred twenty-five million, three hundred eighty-one thousand, three hundred eighty-seven".