387890287429 has 2 divisors, whose sum is σ = 387890287430. Its totient is φ = 387890287428.

The previous prime is 387890287417. The next prime is 387890287511. The reversal of 387890287429 is 924782098783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354975256804 + 32915030625 = 595798^2 + 181425^2 .

It is a cyclic number.

It is not a de Polignac number, because 387890287429 - 2¹⁹ = 387889763141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (387890287129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193945143714 + 193945143715.

It is an arithmetic number, because the mean of its divisors is an integer number (193945143715).

Almost surely, 2^387890287429 is an apocalyptic number.

It is an amenable number.

387890287429 is a deficient number, since it is larger than the sum of its proper divisors (1).

387890287429 is an equidigital number, since it uses as much as digits as its factorization.

387890287429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97542144, while the sum is 67.

The spelling of 387890287429 in words is "three hundred eighty-seven billion, eight hundred ninety million, two hundred eighty-seven thousand, four hundred twenty-nine".