399351377675 has 6 divisors (see below), whose sum is σ = 495195708348. Its totient is φ = 319481102120.

The previous prime is 399351377651. The next prime is 399351377693. The reversal of 399351377675 is 576773153993.

It is not a de Polignac number, because 399351377675 - 2⁸ = 399351377419 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 7987027529 + ... + 7987027578.

It is an arithmetic number, because the mean of its divisors is an integer number (82532618058).

Almost surely, 2^399351377675 is an apocalyptic number.

399351377675 is a deficient number, since it is larger than the sum of its proper divisors (95844330673).

399351377675 is a wasteful number, since it uses less digits than its factorization.

399351377675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15974055117 (or 15974055112 counting only the distinct ones).

The product of its digits is 112521150, while the sum is 65.

The spelling of 399351377675 in words is "three hundred ninety-nine billion, three hundred fifty-one million, three hundred seventy-seven thousand, six hundred seventy-five".