513953986453 has 8 divisors (see below), whose sum is σ = 531732665880. Its totient is φ = 496179048960.

The previous prime is 513953986433. The next prime is 513953986489. The reversal of 513953986453 is 354689359315.

It can be written as a sum of positive squares in 4 ways, for example, as 172451664529 + 341502321924 = 415273^2 + 584382^2 .

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 513953986453 - 2¹⁷ = 513953855381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 513953986391 and 513953986400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513953986423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654600 + ... + 1206817.

It is an arithmetic number, because the mean of its divisors is an integer number (66466583235).

Almost surely, 2^513953986453 is an apocalyptic number.

It is an amenable number.

513953986453 is a deficient number, since it is larger than the sum of its proper divisors (17778679427).

513953986453 is a wasteful number, since it uses less digits than its factorization.

513953986453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1870967.

The product of its digits is 52488000, while the sum is 61.

The spelling of 513953986453 in words is "five hundred thirteen billion, nine hundred fifty-three million, nine hundred eighty-six thousand, four hundred fifty-three".