199393942515 has 8 divisors (see below), whose sum is σ = 319030308048. Its totient is φ = 106343436000.

The previous prime is 199393942511. The next prime is 199393942529. The reversal of 199393942515 is 515249393991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 199393942515 - 2² = 199393942511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199393942511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6646464736 + ... + 6646464765.

It is an arithmetic number, because the mean of its divisors is an integer number (39878788506).

Almost surely, 2^199393942515 is an apocalyptic number.

199393942515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199393942515 is a deficient number, since it is larger than the sum of its proper divisors (119636365533).

199393942515 is a wasteful number, since it uses less digits than its factorization.

199393942515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292929509.

The product of its digits is 11809800, while the sum is 60.

The spelling of 199393942515 in words is "one hundred ninety-nine billion, three hundred ninety-three million, nine hundred forty-two thousand, five hundred fifteen".