102188099709 has 12 divisors (see below), whose sum is σ = 150390034236. Its totient is φ = 66840014592.

The previous prime is 102188099701. The next prime is 102188099723. The reversal of 102188099709 is 907990881201.

It can be written as a sum of positive squares in 2 ways, for example, as 28426971609 + 73761128100 = 168603^2 + 271590^2 .

It is not a de Polignac number, because 102188099709 - 2³ = 102188099701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102188099701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107114932 + ... + 107115885.

It is an arithmetic number, because the mean of its divisors is an integer number (12532502853).

Almost surely, 2^102188099709 is an apocalyptic number.

It is an amenable number.

102188099709 is a deficient number, since it is larger than the sum of its proper divisors (48201934527).

102188099709 is a wasteful number, since it uses less digits than its factorization.

102188099709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214230876 (or 214230873 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 54.

The spelling of 102188099709 in words is "one hundred two billion, one hundred eighty-eight million, ninety-nine thousand, seven hundred nine".