399316673422 has 4 divisors (see below), whose sum is σ = 598975010136. Its totient is φ = 199658336710.

The previous prime is 399316673417. The next prime is 399316673447. The reversal of 399316673422 is 224376613993.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99829168354 + ... + 99829168357.

It is an arithmetic number, because the mean of its divisors is an integer number (149743752534).

Almost surely, 2^399316673422 is an apocalyptic number.

399316673422 is a deficient number, since it is larger than the sum of its proper divisors (199658336714).

399316673422 is a wasteful number, since it uses less digits than its factorization.

399316673422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199658336713.

The product of its digits is 8817984, while the sum is 55.

The spelling of 399316673422 in words is "three hundred ninety-nine billion, three hundred sixteen million, six hundred seventy-three thousand, four hundred twenty-two".