399770633807 has 8 divisors (see below), whose sum is σ = 412674189312. Its totient is φ = 386867561400.

The previous prime is 399770633741. The next prime is 399770633813. The reversal of 399770633807 is 708336077993.

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 399770633807 - 2¹² = 399770629711 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 399770633807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399770633837) 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, 2389382 + ... + 2551212.

It is an arithmetic number, because the mean of its divisors is an integer number (51584273664).

Almost surely, 2^399770633807 is an apocalyptic number.

399770633807 is a deficient number, since it is larger than the sum of its proper divisors (12903555505).

399770633807 is a wasteful number, since it uses less digits than its factorization.

399770633807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241549.

The product of its (nonzero) digits is 36006768, while the sum is 62.

The spelling of 399770633807 in words is "three hundred ninety-nine billion, seven hundred seventy million, six hundred thirty-three thousand, eight hundred seven".