513784914791 has 2 divisors, whose sum is σ = 513784914792. Its totient is φ = 513784914790.

The previous prime is 513784914707. The next prime is 513784914809. The reversal of 513784914791 is 197419487315.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 513784914791 - 2¹⁰ = 513784913767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 513784914791.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (513784914091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256892457395 + 256892457396.

It is an arithmetic number, because the mean of its divisors is an integer number (256892457396).

Almost surely, 2^513784914791 is an apocalyptic number.

513784914791 is a deficient number, since it is larger than the sum of its proper divisors (1).

513784914791 is an equidigital number, since it uses as much as digits as its factorization.

513784914791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 59.

The spelling of 513784914791 in words is "five hundred thirteen billion, seven hundred eighty-four million, nine hundred fourteen thousand, seven hundred ninety-one".