399027916934047 has 2 divisors, whose sum is σ = 399027916934048. Its totient is φ = 399027916934046.

The previous prime is 399027916933949. The next prime is 399027916934117. The reversal of 399027916934047 is 740439619720993.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-399027916934047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (399027916934947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199513958467023 + 199513958467024.

It is an arithmetic number, because the mean of its divisors is an integer number (199513958467024).

Almost surely, 2^{399027916934047} is an apocalyptic number.

399027916934047 is a deficient number, since it is larger than the sum of its proper divisors (1).

399027916934047 is an equidigital number, since it uses as much as digits as its factorization.

399027916934047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555532992, while the sum is 73.

The spelling of 399027916934047 in words is "three hundred ninety-nine trillion, twenty-seven billion, nine hundred sixteen million, nine hundred thirty-four thousand, forty-seven".