368687947689709 has 2 divisors, whose sum is σ = 368687947689710. Its totient is φ = 368687947689708.

The previous prime is 368687947689629. The next prime is 368687947689731. The reversal of 368687947689709 is 907986749786863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 357379288452484 + 11308659237225 = 18904478^2 + 3362835^2 .

It is a cyclic number.

It is not a de Polignac number, because 368687947689709 - 2²¹ = 368687945592557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368687947689769) 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, 184343973844854 + 184343973844855.

It is an arithmetic number, because the mean of its divisors is an integer number (184343973844855).

Almost surely, 2^{368687947689709} is an apocalyptic number.

It is an amenable number.

368687947689709 is a deficient number, since it is larger than the sum of its proper divisors (1).

368687947689709 is an equidigital number, since it uses as much as digits as its factorization.

368687947689709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331838373888, while the sum is 97.

The spelling of 368687947689709 in words is "three hundred sixty-eight trillion, six hundred eighty-seven billion, nine hundred forty-seven million, six hundred eighty-nine thousand, seven hundred nine".