513927442807 has 4 divisors (see below), whose sum is σ = 513930762576. Its totient is φ = 513924123040.

The previous prime is 513927442741. The next prime is 513927442829. The reversal of 513927442807 is 708244729315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-513927442807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513927442837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415698 + ... + 1741279.

It is an arithmetic number, because the mean of its divisors is an integer number (128482690644).

Almost surely, 2^513927442807 is an apocalyptic number.

513927442807 is a deficient number, since it is larger than the sum of its proper divisors (3319769).

513927442807 is a wasteful number, since it uses less digits than its factorization.

513927442807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3319768.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 513927442807 in words is "five hundred thirteen billion, nine hundred twenty-seven million, four hundred forty-two thousand, eight hundred seven".