102688512806 has 16 divisors (see below), whose sum is σ = 168275482128. Its totient is φ = 46610004000.

The previous prime is 102688512803. The next prime is 102688512841. The reversal of 102688512806 is 608215886201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102688512803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3313865 + ... + 3344708.

It is an arithmetic number, because the mean of its divisors is an integer number (10517217633).

Almost surely, 2^102688512806 is an apocalyptic number.

102688512806 is a deficient number, since it is larger than the sum of its proper divisors (65586969322).

102688512806 is a wasteful number, since it uses less digits than its factorization.

102688512806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6659287.

The product of its (nonzero) digits is 368640, while the sum is 47.

The spelling of 102688512806 in words is "one hundred two billion, six hundred eighty-eight million, five hundred twelve thousand, eight hundred six".