387056335649 has 2 divisors, whose sum is σ = 387056335650. Its totient is φ = 387056335648.

The previous prime is 387056335619. The next prime is 387056335651. The reversal of 387056335649 is 946533650783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 352485627025 + 34570708624 = 593705^2 + 185932^2 .

It is a cyclic number.

It is not a de Polignac number, because 387056335649 - 2¹² = 387056331553 is a prime.

Together with 387056335651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (387056335619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193528167824 + 193528167825.

It is an arithmetic number, because the mean of its divisors is an integer number (193528167825).

Almost surely, 2^387056335649 is an apocalyptic number.

It is an amenable number.

387056335649 is a deficient number, since it is larger than the sum of its proper divisors (1).

387056335649 is an equidigital number, since it uses as much as digits as its factorization.

387056335649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 59.

The spelling of 387056335649 in words is "three hundred eighty-seven billion, fifty-six million, three hundred thirty-five thousand, six hundred forty-nine".