399786469996 has 12 divisors (see below), whose sum is σ = 700806134952. Its totient is φ = 199556145728.

The previous prime is 399786469987. The next prime is 399786469997. The reversal of 399786469996 is 699964687993.

It is not an unprimeable number, because it can be changed into a prime (399786469997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84269650 + ... + 84274393.

It is an arithmetic number, because the mean of its divisors is an integer number (58400511246).

Almost surely, 2^399786469996 is an apocalyptic number.

It is an amenable number.

399786469996 is a deficient number, since it is larger than the sum of its proper divisors (301019664956).

399786469996 is a wasteful number, since it uses less digits than its factorization.

399786469996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168544640 (or 168544638 counting only the distinct ones).

The product of its digits is 8571080448, while the sum is 85.

The spelling of 399786469996 in words is "three hundred ninety-nine billion, seven hundred eighty-six million, four hundred sixty-nine thousand, nine hundred ninety-six".