513565475677 has 4 divisors (see below), whose sum is σ = 513719656576. Its totient is φ = 513411294780.

The previous prime is 513565475639. The next prime is 513565475711. The reversal of 513565475677 is 776574565315.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 513565475677 - 2¹⁵ = 513565442909 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 (513565478677) 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, 77085453 + ... + 77092114.

It is an arithmetic number, because the mean of its divisors is an integer number (128429914144).

Almost surely, 2^513565475677 is an apocalyptic number.

It is an amenable number.

513565475677 is a deficient number, since it is larger than the sum of its proper divisors (154180899).

513565475677 is a wasteful number, since it uses less digits than its factorization.

513565475677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154180898.

The product of its digits is 92610000, while the sum is 61.

The spelling of 513565475677 in words is "five hundred thirteen billion, five hundred sixty-five million, four hundred seventy-five thousand, six hundred seventy-seven".