523992973212 has 84 divisors (see below), whose sum is σ = 1377152456400. Its totient is φ = 174372149952.

The previous prime is 523992973159. The next prime is 523992973253. The reversal of 523992973212 is 212379299325.

523992973212 is a `hidden beast` number, since 5 + 23 + 9 + 9 + 297 + 321 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 27 ways as a sum of consecutive naturals, for example, 1596688 + ... + 1896680.

It is an arithmetic number, because the mean of its divisors is an integer number (16394672100).

Almost surely, 2^523992973212 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 523992973212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (688576228200).

523992973212 is an abundant number, since it is smaller than the sum of its proper divisors (853159483188).

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

523992973212 is a wasteful number, since it uses less digits than its factorization.

523992973212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300614 (or 300597 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 523992973212 in words is "five hundred twenty-three billion, nine hundred ninety-two million, nine hundred seventy-three thousand, two hundred twelve".