399199597223 has 16 divisors (see below), whose sum is σ = 480908160000. Its totient is φ = 323711150112.

The previous prime is 399199597213. The next prime is 399199597249. The reversal of 399199597223 is 322795991993.

It is not a de Polignac number, because 399199597223 - 2⁴ = 399199597207 is a prime.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399199597213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1991648 + ... + 2182901.

It is an arithmetic number, because the mean of its divisors is an integer number (30056760000).

Almost surely, 2^399199597223 is an apocalyptic number.

399199597223 is a deficient number, since it is larger than the sum of its proper divisors (81708562777).

399199597223 is a wasteful number, since it uses less digits than its factorization.

399199597223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175294.

The product of its digits is 74401740, while the sum is 68.

The spelling of 399199597223 in words is "three hundred ninety-nine billion, one hundred ninety-nine million, five hundred ninety-seven thousand, two hundred twenty-three".