384020020487 has 2 divisors, whose sum is σ = 384020020488. Its totient is φ = 384020020486.

The previous prime is 384020020481. The next prime is 384020020511. The reversal of 384020020487 is 784020020483.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 384020020487 - 2⁴ = 384020020471 is a prime.

It is a super-2 number, since 2×384020020487² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 384020020487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (384020020481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192010010243 + 192010010244.

It is an arithmetic number, because the mean of its divisors is an integer number (192010010244).

Almost surely, 2^384020020487 is an apocalyptic number.

384020020487 is a deficient number, since it is larger than the sum of its proper divisors (1).

384020020487 is an equidigital number, since it uses as much as digits as its factorization.

384020020487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86016, while the sum is 38.

The spelling of 384020020487 in words is "three hundred eighty-four billion, twenty million, twenty thousand, four hundred eighty-seven".