136677776686 has 32 divisors (see below), whose sum is σ = 235508860800. Its totient is φ = 58835702880.

The previous prime is 136677776617. The next prime is 136677776687. The reversal of 136677776686 is 686677776631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136677776687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1159761 + ... + 1272163.

It is an arithmetic number, because the mean of its divisors is an integer number (7359651900).

Almost surely, 2^136677776686 is an apocalyptic number.

136677776686 is a deficient number, since it is larger than the sum of its proper divisors (98831084114).

136677776686 is a wasteful number, since it uses less digits than its factorization.

136677776686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115344.

The product of its digits is 448084224, while the sum is 70.

Subtracting 136677776686 from its reverse (686677776631), we obtain a palindrome (549999999945).

The spelling of 136677776686 in words is "one hundred thirty-six billion, six hundred seventy-seven million, seven hundred seventy-six thousand, six hundred eighty-six".