51947393162116 has 9 divisors (see below), whose sum is σ = 90907963259799. Its totient is φ = 25973689373604.

The previous prime is 51947393162111. The next prime is 51947393162117. The reversal of 51947393162116 is 61126139374915.

The square root of 51947393162116 is 7207454.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51947393162111) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12613045 + ... + 16216771.

Almost surely, 2^{51947393162116} is an apocalyptic number.

51947393162116 is the 7207454-th square number.

It is an amenable number.

51947393162116 is a deficient number, since it is larger than the sum of its proper divisors (38960570097683).

51947393162116 is an frugal number, since it uses more digits than its factorization.

51947393162116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7207458 (or 3603729 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 58.

The spelling of 51947393162116 in words is "fifty-one trillion, nine hundred forty-seven billion, three hundred ninety-three million, one hundred sixty-two thousand, one hundred sixteen".