513854668765 has 8 divisors (see below), whose sum is σ = 616629967200. Its totient is φ = 411080825232.

The previous prime is 513854668729. The next prime is 513854668799. The reversal of 513854668765 is 567866458315.

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 513854668765 - 2⁷ = 513854668637 is a prime.

It is a super-2 number, since 2×513854668765² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 513854668697 and 513854668706.

It is a congruent number.

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, 691722 + ... + 1227268.

It is an arithmetic number, because the mean of its divisors is an integer number (77078745900).

Almost surely, 2^513854668765 is an apocalyptic number.

It is an amenable number.

513854668765 is a deficient number, since it is larger than the sum of its proper divisors (102775298435).

513854668765 is a wasteful number, since it uses less digits than its factorization.

513854668765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727451.

The product of its digits is 145152000, while the sum is 64.

The spelling of 513854668765 in words is "five hundred thirteen billion, eight hundred fifty-four million, six hundred sixty-eight thousand, seven hundred sixty-five".