13046728249 has 8 divisors (see below), whose sum is σ = 13861389960. Its totient is φ = 12256384896.

The previous prime is 13046728243. The next prime is 13046728291. The reversal of 13046728249 is 94282764031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8413475625 + 4633252624 = 91725^2 + 68068^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13046728249 - 2⁹ = 13046727737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13046728199 and 13046728208.

It is not an unprimeable number, because it can be changed into a prime (13046728243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6078484 + ... + 6080629.

It is an arithmetic number, because the mean of its divisors is an integer number (1732673745).

Almost surely, 2^13046728249 is an apocalyptic number.

It is an amenable number.

13046728249 is a deficient number, since it is larger than the sum of its proper divisors (814661711).

13046728249 is a wasteful number, since it uses less digits than its factorization.

13046728249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12159179.

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 13046728249 in words is "thirteen billion, forty-six million, seven hundred twenty-eight thousand, two hundred forty-nine".