102688987187 has 16 divisors (see below), whose sum is σ = 104714709120. Its totient is φ = 100688028672.

The previous prime is 102688987151. The next prime is 102688987201. The reversal of 102688987187 is 781789886201.

It is a cyclic number.

It is not a de Polignac number, because 102688987187 - 2⁶ = 102688987123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102688987487) 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, 4524614 + ... + 4547252.

It is an arithmetic number, because the mean of its divisors is an integer number (6544669320).

Almost surely, 2^102688987187 is an apocalyptic number.

102688987187 is a deficient number, since it is larger than the sum of its proper divisors (2025721933).

102688987187 is a wasteful number, since it uses less digits than its factorization.

102688987187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23182.

The product of its (nonzero) digits is 21676032, while the sum is 65.

The spelling of 102688987187 in words is "one hundred two billion, six hundred eighty-eight million, nine hundred eighty-seven thousand, one hundred eighty-seven".