513613601326 has 8 divisors (see below), whose sum is σ = 880480459440. Its totient is φ = 220120114848.

The previous prime is 513613601323. The next prime is 513613601327. The reversal of 513613601326 is 623106316315.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513613601323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18343342891 + ... + 18343342918.

It is an arithmetic number, because the mean of its divisors is an integer number (110060057430).

Almost surely, 2^513613601326 is an apocalyptic number.

513613601326 is a deficient number, since it is larger than the sum of its proper divisors (366866858114).

513613601326 is a wasteful number, since it uses less digits than its factorization.

513613601326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36686685818.

The product of its (nonzero) digits is 58320, while the sum is 37.

The spelling of 513613601326 in words is "five hundred thirteen billion, six hundred thirteen million, six hundred one thousand, three hundred twenty-six".