51414217031687 has 2 divisors, whose sum is σ = 51414217031688. Its totient is φ = 51414217031686.

The previous prime is 51414217031651. The next prime is 51414217031789. The reversal of 51414217031687 is 78613071241415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51414217031687 - 2¹⁴ = 51414217015303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51414217031887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25707108515843 + 25707108515844.

It is an arithmetic number, because the mean of its divisors is an integer number (25707108515844).

Almost surely, 2^{51414217031687} is an apocalyptic number.

51414217031687 is a deficient number, since it is larger than the sum of its proper divisors (1).

51414217031687 is an equidigital number, since it uses as much as digits as its factorization.

51414217031687 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 51414217031687 in words is "fifty-one trillion, four hundred fourteen billion, two hundred seventeen million, thirty-one thousand, six hundred eighty-seven".