513440311520242 has 8 divisors (see below), whose sum is σ = 770185028412396. Its totient is φ = 256711968716112.

The previous prime is 513440311520239. The next prime is 513440311520281. The reversal of 513440311520242 is 242025113044315.

It can be written as a sum of positive squares in 2 ways, for example, as 453504240418321 + 59936071101921 = 21295639^2 + 7741839^2 .

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, 4093443613 + ... + 4093569040.

Almost surely, 2^{513440311520242} is an apocalyptic number.

513440311520242 is a deficient number, since it is larger than the sum of its proper divisors (256744716892154).

513440311520242 is a wasteful number, since it uses less digits than its factorization.

513440311520242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187044012.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 513440311520242 its reverse (242025113044315), we get a palindrome (755465424564557).

The spelling of 513440311520242 in words is "five hundred thirteen trillion, four hundred forty billion, three hundred eleven million, five hundred twenty thousand, two hundred forty-two".