399339847215 has 24 divisors (see below), whose sum is σ = 692242933200. Its totient is φ = 212964678144.

The previous prime is 399339847201. The next prime is 399339847217. The reversal of 399339847215 is 512748933993.

399339847215 is a `hidden beast` number, since 3 + 9 + 9 + 339 + 84 + 7 + 215 = 666.

It is not a de Polignac number, because 399339847215 - 2⁸ = 399339846959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399339847217) 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 in 23 ways as a sum of consecutive naturals, for example, 250719 + ... + 928191.

It is an arithmetic number, because the mean of its divisors is an integer number (28843455550).

Almost surely, 2^399339847215 is an apocalyptic number.

399339847215 is a deficient number, since it is larger than the sum of its proper divisors (292903085985).

399339847215 is a wasteful number, since it uses less digits than its factorization.

399339847215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690583 (or 690580 counting only the distinct ones).

The product of its digits is 44089920, while the sum is 63.

The spelling of 399339847215 in words is "three hundred ninety-nine billion, three hundred thirty-nine million, eight hundred forty-seven thousand, two hundred fifteen".