513523633206 has 16 divisors (see below), whose sum is σ = 1027064447424. Its totient is φ = 171171680904.

The previous prime is 513523633193. The next prime is 513523633211. The reversal of 513523633206 is 602336325315.

It is a happy number.

It is a super-2 number, since 2×513523633206² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309580 + ... + 1059663.

It is an arithmetic number, because the mean of its divisors is an integer number (64191527964).

Almost surely, 2^513523633206 is an apocalyptic number.

513523633206 is an abundant number, since it is smaller than the sum of its proper divisors (513540814218).

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

513523633206 is a wasteful number, since it uses less digits than its factorization.

513523633206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431755.

The product of its (nonzero) digits is 291600, while the sum is 39.

The spelling of 513523633206 in words is "five hundred thirteen billion, five hundred twenty-three million, six hundred thirty-three thousand, two hundred six".