51414217031789 has 2 divisors, whose sum is σ = 51414217031790. Its totient is φ = 51414217031788.

The previous prime is 51414217031687. The next prime is 51414217031839. The reversal of 51414217031789 is 98713071241415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31434434516164 + 19979782515625 = 5606642^2 + 4469875^2 .

It is a cyclic number.

It is not a de Polignac number, because 51414217031789 - 2⁴⁴ = 33822030987373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51414217031789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51416217031789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25707108515894 + 25707108515895.

It is an arithmetic number, because the mean of its divisors is an integer number (25707108515895).

Almost surely, 2^{51414217031789} is an apocalyptic number.

It is an amenable number.

51414217031789 is a deficient number, since it is larger than the sum of its proper divisors (1).

51414217031789 is an equidigital number, since it uses as much as digits as its factorization.

51414217031789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 53.

The spelling of 51414217031789 in words is "fifty-one trillion, four hundred fourteen billion, two hundred seventeen million, thirty-one thousand, seven hundred eighty-nine".