51060559991863 has 2 divisors, whose sum is σ = 51060559991864. Its totient is φ = 51060559991862.

The previous prime is 51060559991849. The next prime is 51060559991893. The reversal of 51060559991863 is 36819995506015.

51060559991863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51060559991863 - 2²¹ = 51060557894711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51060559991813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25530279995931 + 25530279995932.

It is an arithmetic number, because the mean of its divisors is an integer number (25530279995932).

Almost surely, 2^{51060559991863} is an apocalyptic number.

51060559991863 is a deficient number, since it is larger than the sum of its proper divisors (1).

51060559991863 is an equidigital number, since it uses as much as digits as its factorization.

51060559991863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732000, while the sum is 67.

The spelling of 51060559991863 in words is "fifty-one trillion, sixty billion, five hundred fifty-nine million, nine hundred ninety-one thousand, eight hundred sixty-three".