199279924367 has 6 divisors (see below), whose sum is σ = 205915677264. Its totient is φ = 192851538780.

The previous prime is 199279924339. The next prime is 199279924409. The reversal of 199279924367 is 763429972991.

It is not a de Polignac number, because 199279924367 - 2⁸ = 199279924111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199279924297 and 199279924306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199279924307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103682663 + ... + 103684584.

It is an arithmetic number, because the mean of its divisors is an integer number (34319279544).

Almost surely, 2^199279924367 is an apocalyptic number.

199279924367 is a deficient number, since it is larger than the sum of its proper divisors (6635752897).

199279924367 is an equidigital number, since it uses as much as digits as its factorization.

199279924367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207367309 (or 207367278 counting only the distinct ones).

The product of its digits is 92588832, while the sum is 68.

The spelling of 199279924367 in words is "one hundred ninety-nine billion, two hundred seventy-nine million, nine hundred twenty-four thousand, three hundred sixty-seven".