513704666761 has 16 divisors (see below), whose sum is σ = 604671637248. Its totient is φ = 430253366400.

The previous prime is 513704666749. The next prime is 513704666807. The reversal of 513704666761 is 167666407315.

It is not a de Polignac number, because 513704666761 - 2¹¹ = 513704664713 is a prime.

It is a super-2 number, since 2×513704666761² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513704666699 and 513704666708.

It is not an unprimeable number, because it can be changed into a prime (513704646761) 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, 3373041 + ... + 3522046.

It is an arithmetic number, because the mean of its divisors is an integer number (37791977328).

Almost surely, 2^513704666761 is an apocalyptic number.

It is an amenable number.

513704666761 is a deficient number, since it is larger than the sum of its proper divisors (90966970487).

513704666761 is a wasteful number, since it uses less digits than its factorization.

513704666761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6895632.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 513704666761 in words is "five hundred thirteen billion, seven hundred four million, six hundred sixty-six thousand, seven hundred sixty-one".