102177030408709 has 2 divisors, whose sum is σ = 102177030408710. Its totient is φ = 102177030408708.

The previous prime is 102177030408707. The next prime is 102177030408751. The reversal of 102177030408709 is 907804030771201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85001890804609 + 17175139604100 = 9219647^2 + 4144290^2 .

It is a cyclic number.

It is not a de Polignac number, because 102177030408709 - 2¹ = 102177030408707 is a prime.

Together with 102177030408707, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102177030408707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51088515204354 + 51088515204355.

It is an arithmetic number, because the mean of its divisors is an integer number (51088515204355).

Almost surely, 2^{102177030408709} is an apocalyptic number.

It is an amenable number.

102177030408709 is a deficient number, since it is larger than the sum of its proper divisors (1).

102177030408709 is an equidigital number, since it uses as much as digits as its factorization.

102177030408709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 592704, while the sum is 49.

The spelling of 102177030408709 in words is "one hundred two trillion, one hundred seventy-seven billion, thirty million, four hundred eight thousand, seven hundred nine".