382506815287 has 2 divisors, whose sum is σ = 382506815288. Its totient is φ = 382506815286.

The previous prime is 382506815281. The next prime is 382506815309. The reversal of 382506815287 is 782518605283.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-382506815287 is a prime.

It is a super-2 number, since 2×382506815287² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (382506815281) 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, 191253407643 + 191253407644.

It is an arithmetic number, because the mean of its divisors is an integer number (191253407644).

Almost surely, 2^382506815287 is an apocalyptic number.

382506815287 is a deficient number, since it is larger than the sum of its proper divisors (1).

382506815287 is an equidigital number, since it uses as much as digits as its factorization.

382506815287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 382506815287 in words is "three hundred eighty-two billion, five hundred six million, eight hundred fifteen thousand, two hundred eighty-seven".