102026838689 has 2 divisors, whose sum is σ = 102026838690. Its totient is φ = 102026838688.

The previous prime is 102026838629. The next prime is 102026838691. The reversal of 102026838689 is 986838620201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51034424464 + 50992414225 = 225908^2 + 225815^2 .

It is a cyclic number.

It is not a de Polignac number, because 102026838689 - 2²⁸ = 101758403233 is a prime.

Together with 102026838691, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102026838689.

It is not a weakly prime, because it can be changed into another prime (102026838629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51013419344 + 51013419345.

It is an arithmetic number, because the mean of its divisors is an integer number (51013419345).

Almost surely, 2^102026838689 is an apocalyptic number.

It is an amenable number.

102026838689 is a deficient number, since it is larger than the sum of its proper divisors (1).

102026838689 is an equidigital number, since it uses as much as digits as its factorization.

102026838689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 102026838689 in words is "one hundred two billion, twenty-six million, eight hundred thirty-eight thousand, six hundred eighty-nine".