51118707520619 has 2 divisors, whose sum is σ = 51118707520620. Its totient is φ = 51118707520618.

The previous prime is 51118707520607. The next prime is 51118707520667. The reversal of 51118707520619 is 91602570781115.

51118707520619 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 a de Polignac number, because none of the positive numbers 2^k-51118707520619 is a prime.

It is a super-2 number, since 2×51118707520619² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51118707520019) 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, 25559353760309 + 25559353760310.

It is an arithmetic number, because the mean of its divisors is an integer number (25559353760310).

Almost surely, 2^{51118707520619} is an apocalyptic number.

51118707520619 is a deficient number, since it is larger than the sum of its proper divisors (1).

51118707520619 is an equidigital number, since it uses as much as digits as its factorization.

51118707520619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1058400, while the sum is 53.

The spelling of 51118707520619 in words is "fifty-one trillion, one hundred eighteen billion, seven hundred seven million, five hundred twenty thousand, six hundred nineteen".