199188879313 has 8 divisors (see below), whose sum is σ = 209872404000. Its totient is φ = 188525344608.

The previous prime is 199188879287. The next prime is 199188879319. The reversal of 199188879313 is 313978881991.

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 199188879313 - 2²⁵ = 199155324881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199188879319) 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, 4977031 + ... + 5016892.

It is an arithmetic number, because the mean of its divisors is an integer number (26234050500).

Almost surely, 2^199188879313 is an apocalyptic number.

It is an amenable number.

199188879313 is a deficient number, since it is larger than the sum of its proper divisors (10683524687).

199188879313 is a wasteful number, since it uses less digits than its factorization.

199188879313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9994991.

The product of its digits is 23514624, while the sum is 67.

The spelling of 199188879313 in words is "one hundred ninety-nine billion, one hundred eighty-eight million, eight hundred seventy-nine thousand, three hundred thirteen".