1396485110509 has 2 divisors, whose sum is σ = 1396485110510. Its totient is φ = 1396485110508.

The previous prime is 1396485110467. The next prime is 1396485110569. The reversal of 1396485110509 is 9050115846931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835858548009 + 560626562500 = 914253^2 + 748750^2 .

It is a cyclic number.

It is not a de Polignac number, because 1396485110509 - 2¹⁹ = 1396484586221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1396485110569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698242555254 + 698242555255.

It is an arithmetic number, because the mean of its divisors is an integer number (698242555255).

Almost surely, 2^{1396485110509} is an apocalyptic number.

It is an amenable number.

1396485110509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396485110509 is an equidigital number, since it uses as much as digits as its factorization.

1396485110509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The spelling of 1396485110509 in words is "one trillion, three hundred ninety-six billion, four hundred eighty-five million, one hundred ten thousand, five hundred nine".