513405322212 has 96 divisors (see below), whose sum is σ = 1294360905600. Its totient is φ = 157890816000.

The previous prime is 513405322159. The next prime is 513405322249. The reversal of 513405322212 is 212223504315.

It is a self number, because there is not a number n which added to its sum of digits gives 513405322212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1221964 + ... + 1587452.

It is an arithmetic number, because the mean of its divisors is an integer number (13482926100).

Almost surely, 2^513405322212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513405322212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (647180452800).

513405322212 is an abundant number, since it is smaller than the sum of its proper divisors (780955583388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

513405322212 is a wasteful number, since it uses less digits than its factorization.

513405322212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365677 (or 365675 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 513405322212 its reverse (212223504315), we get a palindrome (725628826527).

The spelling of 513405322212 in words is "five hundred thirteen billion, four hundred five million, three hundred twenty-two thousand, two hundred twelve".