399352253993 has 8 divisors (see below), whose sum is σ = 497893719360. Its totient is φ = 311183574480.

The previous prime is 399352253941. The next prime is 399352254029.

399352253993 is nontrivially palindromic in base 10.

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 399352253993 - 2⁸ = 399352253737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399352253093) 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, 2593196378 + ... + 2593196531.

It is an arithmetic number, because the mean of its divisors is an integer number (62236714920).

Almost surely, 2^399352253993 is an apocalyptic number.

It is an amenable number.

399352253993 is a deficient number, since it is larger than the sum of its proper divisors (98541465367).

399352253993 is a wasteful number, since it uses less digits than its factorization.

399352253993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5186392927.

The product of its digits is 53144100, while the sum is 62.

The spelling of 399352253993 in words is "three hundred ninety-nine billion, three hundred fifty-two million, two hundred fifty-three thousand, nine hundred ninety-three".