521110460365412 has 6 divisors (see below), whose sum is σ = 911943305639478. Its totient is φ = 260555230182704.

The previous prime is 521110460365409. The next prime is 521110460365423. The reversal of 521110460365412 is 214563064011125.

It can be written as a sum of positive squares in only one way, i.e., 520238802857536 + 871657507876 = 22808744^2 + 933626^2 .

It is a super-2 number, since 2×521110460365412² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 521110460365412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65138807545673 + ... + 65138807545680.

It is an arithmetic number, because the mean of its divisors is an integer number (151990550939913).

Almost surely, 2^{521110460365412} is an apocalyptic number.

It is an amenable number.

521110460365412 is a deficient number, since it is larger than the sum of its proper divisors (390832845274066).

521110460365412 is a wasteful number, since it uses less digits than its factorization.

521110460365412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130277615091357 (or 130277615091355 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 521110460365412 in words is "five hundred twenty-one trillion, one hundred ten billion, four hundred sixty million, three hundred sixty-five thousand, four hundred twelve".