102868536686 has 4 divisors (see below), whose sum is σ = 154302805032. Its totient is φ = 51434268342.

The previous prime is 102868536653. The next prime is 102868536707. The reversal of 102868536686 is 686635868201.

102868536686 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 686635868201 = 12109 ⋅56704589.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25717134170 + ... + 25717134173.

It is an arithmetic number, because the mean of its divisors is an integer number (38575701258).

Almost surely, 2^102868536686 is an apocalyptic number.

102868536686 is a deficient number, since it is larger than the sum of its proper divisors (51434268346).

102868536686 is an equidigital number, since it uses as much as digits as its factorization.

102868536686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51434268345.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 102868536686 in words is "one hundred two billion, eight hundred sixty-eight million, five hundred thirty-six thousand, six hundred eighty-six".