1399328515513 has 16 divisors (see below), whose sum is σ = 1546416957456. Its totient is φ = 1260649461760.

The previous prime is 1399328515493. The next prime is 1399328515537. The reversal of 1399328515513 is 3155158239931.

It can be written as a sum of positive squares in 8 ways, for example, as 8325285049 + 1391003230464 = 91243^2 + 1179408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1399328515513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1399328515573) 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 in 15 ways as a sum of consecutive naturals, for example, 18903106 + ... + 18976987.

It is an arithmetic number, because the mean of its divisors is an integer number (96651059841).

Almost surely, 2^{1399328515513} is an apocalyptic number.

It is an amenable number.

1399328515513 is a deficient number, since it is larger than the sum of its proper divisors (147088441943).

1399328515513 is a wasteful number, since it uses less digits than its factorization.

1399328515513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37880204.

The product of its digits is 4374000, while the sum is 55.

The spelling of 1399328515513 in words is "one trillion, three hundred ninety-nine billion, three hundred twenty-eight million, five hundred fifteen thousand, five hundred thirteen".