529664474868 has 12 divisors (see below), whose sum is σ = 1235883774720. Its totient is φ = 176554824952.

The previous prime is 529664474813. The next prime is 529664474869. The reversal of 529664474868 is 868474466925.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (529664474869) 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, 22069353108 + ... + 22069353131.

It is an arithmetic number, because the mean of its divisors is an integer number (102990314560).

Almost surely, 2^529664474868 is an apocalyptic number.

It is an amenable number.

529664474868 is an abundant number, since it is smaller than the sum of its proper divisors (706219299852).

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

529664474868 is a wasteful number, since it uses less digits than its factorization.

529664474868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44138706246 (or 44138706244 counting only the distinct ones).

The product of its digits is 557383680, while the sum is 69.

The spelling of 529664474868 in words is "five hundred twenty-nine billion, six hundred sixty-four million, four hundred seventy-four thousand, eight hundred sixty-eight".