199140151891969 has 8 divisors (see below), whose sum is σ = 199509216252192. Its totient is φ = 198771141972000.

The previous prime is 199140151891873. The next prime is 199140151891979. The reversal of 199140151891969 is 969198151041991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199140151891969 is a prime.

It is a super-2 number, since 2×199140151891969² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199140151891979) 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, 6283719 + ... + 20922844.

It is an arithmetic number, because the mean of its divisors is an integer number (24938652031524).

Almost surely, 2^{199140151891969} is an apocalyptic number.

It is an amenable number.

199140151891969 is a deficient number, since it is larger than the sum of its proper divisors (369064360223).

199140151891969 is a wasteful number, since it uses less digits than its factorization.

199140151891969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27220127.

The product of its (nonzero) digits is 56687040, while the sum is 73.

The spelling of 199140151891969 in words is "one hundred ninety-nine trillion, one hundred forty billion, one hundred fifty-one million, eight hundred ninety-one thousand, nine hundred sixty-nine".