8436447513 has 48 divisors (see below), whose sum is σ = 13708036160. Its totient is φ = 5154041664.

The previous prime is 8436447511. The next prime is 8436447577. The reversal of 8436447513 is 3157446348.

It is not a de Polignac number, because 8436447513 - 2¹ = 8436447511 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8436447511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 429495 + ... + 448707.

Almost surely, 2^8436447513 is an apocalyptic number.

It is an amenable number.

8436447513 is a deficient number, since it is larger than the sum of its proper divisors (5271588647).

8436447513 is a wasteful number, since it uses less digits than its factorization.

8436447513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19380 (or 19368 counting only the distinct ones).

The product of its digits is 967680, while the sum is 45.

The square root of 8436447513 is about 91850.1361621201. The cubic root of 8436447513 is about 2035.7285603558.

The spelling of 8436447513 in words is "eight billion, four hundred thirty-six million, four hundred forty-seven thousand, five hundred thirteen".