513838863853 has 16 divisors (see below), whose sum is σ = 592730744320. Its totient is φ = 436319913600.

The previous prime is 513838863821. The next prime is 513838863893. The reversal of 513838863853 is 358368838315.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 513838863853 - 2⁵ = 513838863821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513838863791 and 513838863800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513838863893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4800508 + ... + 4906378.

It is an arithmetic number, because the mean of its divisors is an integer number (37045671520).

Almost surely, 2^513838863853 is an apocalyptic number.

It is an amenable number.

513838863853 is a deficient number, since it is larger than the sum of its proper divisors (78891880467).

513838863853 is a wasteful number, since it uses less digits than its factorization.

513838863853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112348.

The product of its digits is 49766400, while the sum is 61.

The spelling of 513838863853 in words is "five hundred thirteen billion, eight hundred thirty-eight million, eight hundred sixty-three thousand, eight hundred fifty-three".