368687947689779 has 2 divisors, whose sum is σ = 368687947689780. Its totient is φ = 368687947689778.

The previous prime is 368687947689769. The next prime is 368687947689797. The reversal of 368687947689779 is 977986749786863.

Together with next prime (368687947689797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-368687947689779 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (368687947689709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184343973844889 + 184343973844890.

It is an arithmetic number, because the mean of its divisors is an integer number (184343973844890).

Almost surely, 2^{368687947689779} is an apocalyptic number.

368687947689779 is a deficient number, since it is larger than the sum of its proper divisors (1).

368687947689779 is an equidigital number, since it uses as much as digits as its factorization.

368687947689779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322868617216, while the sum is 104.

The spelling of 368687947689779 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 seventy-nine".