387552485849 has 2 divisors, whose sum is σ = 387552485850. Its totient is φ = 387552485848.

The previous prime is 387552485783. The next prime is 387552485893. The reversal of 387552485849 is 948584255783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381973441600 + 5579044249 = 618040^2 + 74693^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-387552485849 is a prime.

It is not a weakly prime, because it can be changed into another prime (387552485149) 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, 193776242924 + 193776242925.

It is an arithmetic number, because the mean of its divisors is an integer number (193776242925).

Almost surely, 2^387552485849 is an apocalyptic number.

It is an amenable number.

387552485849 is a deficient number, since it is larger than the sum of its proper divisors (1).

387552485849 is an equidigital number, since it uses as much as digits as its factorization.

387552485849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 387072000, while the sum is 68.

The spelling of 387552485849 in words is "three hundred eighty-seven billion, five hundred fifty-two million, four hundred eighty-five thousand, eight hundred forty-nine".