102170757791 has 16 divisors (see below), whose sum is σ = 107714979360. Its totient is φ = 96762207360.

The previous prime is 102170757779. The next prime is 102170757839. The reversal of 102170757791 is 197757071201.

It is not a de Polignac number, because 102170757791 - 2¹⁰ = 102170756767 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 (102170757701) 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, 10417496 + ... + 10427298.

It is an arithmetic number, because the mean of its divisors is an integer number (6732186210).

Almost surely, 2^102170757791 is an apocalyptic number.

102170757791 is a deficient number, since it is larger than the sum of its proper divisors (5544221569).

102170757791 is an equidigital number, since it uses as much as digits as its factorization.

102170757791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16666.

The product of its (nonzero) digits is 216090, while the sum is 47.

The spelling of 102170757791 in words is "one hundred two billion, one hundred seventy million, seven hundred fifty-seven thousand, seven hundred ninety-one".