51668364701041 has 9 divisors (see below), whose sum is σ = 56792586953739. Its totient is φ = 46971168756600.

The previous prime is 51668364700963. The next prime is 51668364701069. The reversal of 51668364701041 is 14010746386615.

The square root of 51668364701041 is 7188071.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 794096636641 + 50874268064400 = 891121^2 + 7132620^2 .

It is not a de Polignac number, because 51668364701041 - 2⁷ = 51668364700913 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51668364701041.

It is not an unprimeable number, because it can be changed into a prime (51668364701081) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 78742051 + ... + 79395511.

Almost surely, 2^{51668364701041} is an apocalyptic number.

51668364701041 is the 7188071-st square number.

51668364701041 is the 3594036-th centered octagonal number.

It is an amenable number.

51668364701041 is a deficient number, since it is larger than the sum of its proper divisors (5124222252698).

51668364701041 is an frugal number, since it uses more digits than its factorization.

51668364701041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1306944 (or 653472 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 51668364701041 in words is "fifty-one trillion, six hundred sixty-eight billion, three hundred sixty-four million, seven hundred one thousand, forty-one".