51436576705447 has 2 divisors, whose sum is σ = 51436576705448. Its totient is φ = 51436576705446.

The previous prime is 51436576705433. The next prime is 51436576705499. The reversal of 51436576705447 is 74450767563415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51436576705447 - 2¹¹ = 51436576703399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51436576705247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25718288352723 + 25718288352724.

It is an arithmetic number, because the mean of its divisors is an integer number (25718288352724).

Almost surely, 2^{51436576705447} is an apocalyptic number.

51436576705447 is a deficient number, since it is larger than the sum of its proper divisors (1).

51436576705447 is an equidigital number, since it uses as much as digits as its factorization.

51436576705447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352000, while the sum is 64.

The spelling of 51436576705447 in words is "fifty-one trillion, four hundred thirty-six billion, five hundred seventy-six million, seven hundred five thousand, four hundred forty-seven".