518077466677 has 2 divisors, whose sum is σ = 518077466678. Its totient is φ = 518077466676.

The previous prime is 518077466671. The next prime is 518077466737. The reversal of 518077466677 is 776664770815.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509009475601 + 9067991076 = 713449^2 + 95226^2 .

It is a cyclic number.

It is not a de Polignac number, because 518077466677 - 2⁷ = 518077466549 is a prime.

It is a super-2 number, since 2×518077466677² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (518077466671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259038733338 + 259038733339.

It is an arithmetic number, because the mean of its divisors is an integer number (259038733339).

Almost surely, 2^518077466677 is an apocalyptic number.

It is an amenable number.

518077466677 is a deficient number, since it is larger than the sum of its proper divisors (1).

518077466677 is an equidigital number, since it uses as much as digits as its factorization.

518077466677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82978560, while the sum is 64.

The spelling of 518077466677 in words is "five hundred eighteen billion, seventy-seven million, four hundred sixty-six thousand, six hundred seventy-seven".