677586109129 has 2 divisors, whose sum is σ = 677586109130. Its totient is φ = 677586109128.

The previous prime is 677586109087. The next prime is 677586109153. The reversal of 677586109129 is 921901685776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 420095829904 + 257490279225 = 648148^2 + 507435^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677586109129 is a prime.

It is not a weakly prime, because it can be changed into another prime (677586119129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338793054564 + 338793054565.

It is an arithmetic number, because the mean of its divisors is an integer number (338793054565).

Almost surely, 2^677586109129 is an apocalyptic number.

It is an amenable number.

677586109129 is a deficient number, since it is larger than the sum of its proper divisors (1).

677586109129 is an equidigital number, since it uses as much as digits as its factorization.

677586109129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11430720, while the sum is 61.

The spelling of 677586109129 in words is "six hundred seventy-seven billion, five hundred eighty-six million, one hundred nine thousand, one hundred twenty-nine".