13399519489 has 4 divisors (see below), whose sum is σ = 13489449300. Its totient is φ = 13309589680.

The previous prime is 13399519447. The next prime is 13399519499. The reversal of 13399519489 is 98491599331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98491599331 = 971 ⋅101433161.

It can be written as a sum of positive squares in 2 ways, for example, as 3455441089 + 9944078400 = 58783^2 + 99720^2 .

It is a cyclic number.

It is not a de Polignac number, because 13399519489 - 2¹⁷ = 13399388417 is a prime.

It is a super-2 number, since 2×13399519489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13399519499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44964682 + ... + 44964979.

It is an arithmetic number, because the mean of its divisors is an integer number (3372362325).

Almost surely, 2^13399519489 is an apocalyptic number.

It is an amenable number.

13399519489 is a deficient number, since it is larger than the sum of its proper divisors (89929811).

13399519489 is an equidigital number, since it uses as much as digits as its factorization.

13399519489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89929810.

The product of its digits is 9447840, while the sum is 61.

The spelling of 13399519489 in words is "thirteen billion, three hundred ninety-nine million, five hundred nineteen thousand, four hundred eighty-nine".