513345513652 has 48 divisors (see below), whose sum is σ = 915524007552. Its totient is φ = 251807339520.

The previous prime is 513345513599. The next prime is 513345513743. The reversal of 513345513652 is 256315543315.

It is a junction number, because it is equal to n+sod(n) for n = 513345513599 and 513345513608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66638433 + ... + 66646135.

It is an arithmetic number, because the mean of its divisors is an integer number (19073416824).

Almost surely, 2^513345513652 is an apocalyptic number.

It is an amenable number.

513345513652 is a deficient number, since it is larger than the sum of its proper divisors (402178493900).

513345513652 is a wasteful number, since it uses less digits than its factorization.

513345513652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8968 (or 8966 counting only the distinct ones).

The product of its digits is 810000, while the sum is 43.

The spelling of 513345513652 in words is "five hundred thirteen billion, three hundred forty-five million, five hundred thirteen thousand, six hundred fifty-two".