399076670993 has 192 divisors, whose sum is σ = 579156480000. Its totient is φ = 269917401600.

The previous prime is 399076670957. The next prime is 399076671017.

399076670993 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 399076670993 - 2⁶ = 399076670929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399076670933) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2005410308 + ... + 2005410506.

It is an arithmetic number, because the mean of its divisors is an integer number (3016440000).

Almost surely, 2^399076670993 is an apocalyptic number.

It is an amenable number.

399076670993 is a deficient number, since it is larger than the sum of its proper divisors (180079809007).

399076670993 is a wasteful number, since it uses less digits than its factorization.

399076670993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 104162436, while the sum is 68.

The spelling of 399076670993 in words is "three hundred ninety-nine billion, seventy-six million, six hundred seventy thousand, nine hundred ninety-three".