51118707520607 has 2 divisors, whose sum is σ = 51118707520608. Its totient is φ = 51118707520606.

The previous prime is 51118707520591. The next prime is 51118707520619. The reversal of 51118707520607 is 70602570781115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51118707520607 - 2⁴ = 51118707520591 is a prime.

It is a super-2 number, since 2×51118707520607² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51118707520667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25559353760303 + 25559353760304.

It is an arithmetic number, because the mean of its divisors is an integer number (25559353760304).

Almost surely, 2^{51118707520607} is an apocalyptic number.

51118707520607 is a deficient number, since it is larger than the sum of its proper divisors (1).

51118707520607 is an equidigital number, since it uses as much as digits as its factorization.

51118707520607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 823200, while the sum is 50.

The spelling of 51118707520607 in words is "fifty-one trillion, one hundred eighteen billion, seven hundred seven million, five hundred twenty thousand, six hundred seven".