523405251216 has 30 divisors (see below), whose sum is σ = 1464807752070. Its totient is φ = 174468417024.

The previous prime is 523405251163. The next prime is 523405251221. The reversal of 523405251216 is 612152504325.

523405251216 is a `hidden beast` number, since 5 + 2 + 3 + 4 + 0 + 525 + 121 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 518693801616 + 4711449600 = 720204^2 + 68640^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

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 5 ways as a sum of consecutive naturals, for example, 1817379201 + ... + 1817379488.

It is an arithmetic number, because the mean of its divisors is an integer number (48826925069).

Almost surely, 2^523405251216 is an apocalyptic number.

It is an amenable number.

523405251216 is an abundant number, since it is smaller than the sum of its proper divisors (941402500854).

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

523405251216 is a wasteful number, since it uses less digits than its factorization.

523405251216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634758703 (or 3634758694 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 523405251216 in words is "five hundred twenty-three billion, four hundred five million, two hundred fifty-one thousand, two hundred sixteen".