102688512799 has 4 divisors (see below), whose sum is σ = 102697570800. Its totient is φ = 102679454800.

The previous prime is 102688512791. The next prime is 102688512803. The reversal of 102688512799 is 997215886201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102688512799 - 2³ = 102688512791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102688512791) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 4511974 + ... + 4534675.

It is an arithmetic number, because the mean of its divisors is an integer number (25674392700).

Almost surely, 2^102688512799 is an apocalyptic number.

102688512799 is a deficient number, since it is larger than the sum of its proper divisors (9058001).

102688512799 is an equidigital number, since it uses as much as digits as its factorization.

102688512799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9058000.

The product of its (nonzero) digits is 4354560, while the sum is 58.

The spelling of 102688512799 in words is "one hundred two billion, six hundred eighty-eight million, five hundred twelve thousand, seven hundred ninety-nine".