102609763489 has 2 divisors, whose sum is σ = 102609763490. Its totient is φ = 102609763488.

The previous prime is 102609763481. The next prime is 102609763547. The reversal of 102609763489 is 984367906201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62772797025 + 39836966464 = 250545^2 + 199592^2 .

It is a cyclic number.

It is not a de Polignac number, because 102609763489 - 2³ = 102609763481 is a prime.

It is not a weakly prime, because it can be changed into another prime (102609763481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51304881744 + 51304881745.

It is an arithmetic number, because the mean of its divisors is an integer number (51304881745).

Almost surely, 2^102609763489 is an apocalyptic number.

It is an amenable number.

102609763489 is a deficient number, since it is larger than the sum of its proper divisors (1).

102609763489 is an equidigital number, since it uses as much as digits as its factorization.

102609763489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3919104, while the sum is 55.

The spelling of 102609763489 in words is "one hundred two billion, six hundred nine million, seven hundred sixty-three thousand, four hundred eighty-nine".