10513944459 has 24 divisors (see below), whose sum is σ = 15269409792. Its totient is φ = 6971235120.

The previous prime is 10513944449. The next prime is 10513944473. The reversal of 10513944459 is 95444931501.

10513944459 is a `hidden beast` number, since 1 + 0 + 513 + 94 + 4 + 45 + 9 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-10513944459 is a prime.

It is a super-2 number, since 2×10513944459² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10513944449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3030844 + ... + 3034310.

It is an arithmetic number, because the mean of its divisors is an integer number (636225408).

Almost surely, 2^10513944459 is an apocalyptic number.

10513944459 is a deficient number, since it is larger than the sum of its proper divisors (4755465333).

10513944459 is a wasteful number, since it uses less digits than its factorization.

10513944459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207 (or 5204 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 10513944459 in words is "ten billion, five hundred thirteen million, nine hundred forty-four thousand, four hundred fifty-nine".