51086818377479 has 2 divisors, whose sum is σ = 51086818377480. Its totient is φ = 51086818377478.

The previous prime is 51086818377451. The next prime is 51086818377487. The reversal of 51086818377479 is 97477381868015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51086818377479 - 2³² = 51082523410183 is a prime.

It is a super-2 number, since 2×51086818377479² (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 (51086818376479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25543409188739 + 25543409188740.

It is an arithmetic number, because the mean of its divisors is an integer number (25543409188740).

Almost surely, 2^{51086818377479} is an apocalyptic number.

51086818377479 is a deficient number, since it is larger than the sum of its proper divisors (1).

51086818377479 is an equidigital number, since it uses as much as digits as its factorization.

51086818377479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 568995840, while the sum is 74.

The spelling of 51086818377479 in words is "fifty-one trillion, eighty-six billion, eight hundred eighteen million, three hundred seventy-seven thousand, four hundred seventy-nine".