399027916933967 has 8 divisors (see below), whose sum is σ = 401598245582352. Its totient is φ = 396461607566400.

The previous prime is 399027916933949. The next prime is 399027916934047. The reversal of 399027916933967 is 769339619720993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 399027916933967 - 2²⁴ = 399027900156751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399027916933927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1004621009 + ... + 1005018122.

It is an arithmetic number, because the mean of its divisors is an integer number (50199780697794).

Almost surely, 2^{399027916933967} is an apocalyptic number.

399027916933967 is a deficient number, since it is larger than the sum of its proper divisors (2570328648385).

399027916933967 is a wasteful number, since it uses less digits than its factorization.

399027916933967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009640409.

The product of its (nonzero) digits is 5624771544, while the sum is 83.

The spelling of 399027916933967 in words is "three hundred ninety-nine trillion, twenty-seven billion, nine hundred sixteen million, nine hundred thirty-three thousand, nine hundred sixty-seven".