513544105416242 has 8 divisors (see below), whose sum is σ = 789104357103132. Its totient is φ = 250509319715200.

The previous prime is 513544105416217. The next prime is 513544105416269. The reversal of 513544105416242 is 242614501445315.

It can be written as a sum of positive squares in 2 ways, for example, as 456834153995041 + 56709951421201 = 21373679^2 + 7530601^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3131366496359 + ... + 3131366496522.

Almost surely, 2^{513544105416242} is an apocalyptic number.

513544105416242 is a deficient number, since it is larger than the sum of its proper divisors (275560251686890).

513544105416242 is a wasteful number, since it uses less digits than its factorization.

513544105416242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6262732992924.

The product of its (nonzero) digits is 2304000, while the sum is 47.

The spelling of 513544105416242 in words is "five hundred thirteen trillion, five hundred forty-four billion, one hundred five million, four hundred sixteen thousand, two hundred forty-two".