521068468 has 6 divisors (see below), whose sum is σ = 911869826. Its totient is φ = 260534232.

The previous prime is 521068441. The next prime is 521068469. The reversal of 521068468 is 864860125.

It can be written as a sum of positive squares in only one way, i.e., 466041744 + 55026724 = 21588^2 + 7418^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 521068468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (521068469) by changing a digit.

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 as a sum of consecutive naturals, namely, 65133555 + ... + 65133562.

Almost surely, 2^521068468 is an apocalyptic number.

It is an amenable number.

521068468 is a deficient number, since it is larger than the sum of its proper divisors (390801358).

521068468 is a wasteful number, since it uses less digits than its factorization.

521068468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130267121 (or 130267119 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 521068468 is about 22826.9241905255. The cubic root of 521068468 is about 804.6955463019.

The spelling of 521068468 in words is "five hundred twenty-one million, sixty-eight thousand, four hundred sixty-eight".