199734612315 has 32 divisors (see below), whose sum is σ = 365591170560. Its totient is φ = 91216710144.

The previous prime is 199734612313. The next prime is 199734612349. The reversal of 199734612315 is 513216437991.

It is a happy number.

It is not a de Polignac number, because 199734612315 - 2¹ = 199734612313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199734612313) 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 31 ways as a sum of consecutive naturals, for example, 836689 + ... + 1048578.

It is an arithmetic number, because the mean of its divisors is an integer number (11424724080).

Almost surely, 2^199734612315 is an apocalyptic number.

199734612315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

199734612315 is a deficient number, since it is larger than the sum of its proper divisors (165856558245).

199734612315 is a wasteful number, since it uses less digits than its factorization.

199734612315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886291.

The product of its digits is 1224720, while the sum is 51.

The spelling of 199734612315 in words is "one hundred ninety-nine billion, seven hundred thirty-four million, six hundred twelve thousand, three hundred fifteen".