513791680755 has 8 divisors (see below), whose sum is σ = 822066689232. Its totient is φ = 274022229728.

The previous prime is 513791680741. The next prime is 513791680861. The reversal of 513791680755 is 557086197315.

It is a happy number.

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 513791680755 - 2⁴ = 513791680739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513791680695 and 513791680704.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17126389344 + ... + 17126389373.

It is an arithmetic number, because the mean of its divisors is an integer number (102758336154).

Almost surely, 2^513791680755 is an apocalyptic number.

513791680755 is a deficient number, since it is larger than the sum of its proper divisors (308275008477).

513791680755 is a wasteful number, since it uses less digits than its factorization.

513791680755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34252778725.

The product of its (nonzero) digits is 7938000, while the sum is 57.

The spelling of 513791680755 in words is "five hundred thirteen billion, seven hundred ninety-one million, six hundred eighty thousand, seven hundred fifty-five".