102109952538569 has 2 divisors, whose sum is σ = 102109952538570. Its totient is φ = 102109952538568.

The previous prime is 102109952538541. The next prime is 102109952538689. The reversal of 102109952538569 is 965835259901201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51056240983225 + 51053711555344 = 7145365^2 + 7145188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102109952538569 is a prime.

It is a super-2 number, since 2×102109952538569² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102109952538509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51054976269284 + 51054976269285.

It is an arithmetic number, because the mean of its divisors is an integer number (51054976269285).

Almost surely, 2^{102109952538569} is an apocalyptic number.

It is an amenable number.

102109952538569 is a deficient number, since it is larger than the sum of its proper divisors (1).

102109952538569 is an equidigital number, since it uses as much as digits as its factorization.

102109952538569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488000, while the sum is 65.

The spelling of 102109952538569 in words is "one hundred two trillion, one hundred nine billion, nine hundred fifty-two million, five hundred thirty-eight thousand, five hundred sixty-nine".