51611655546079 has 2 divisors, whose sum is σ = 51611655546080. Its totient is φ = 51611655546078.

The previous prime is 51611655546067. The next prime is 51611655546083. The reversal of 51611655546079 is 97064555611615.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51611655546079 - 2²³ = 51611647157471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51611655546179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805827773039 + 25805827773040.

It is an arithmetic number, because the mean of its divisors is an integer number (25805827773040).

Almost surely, 2^{51611655546079} is an apocalyptic number.

51611655546079 is a deficient number, since it is larger than the sum of its proper divisors (1).

51611655546079 is an equidigital number, since it uses as much as digits as its factorization.

51611655546079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020000, while the sum is 61.

The spelling of 51611655546079 in words is "fifty-one trillion, six hundred eleven billion, six hundred fifty-five million, five hundred forty-six thousand, seventy-nine".