199358255709 has 6 divisors (see below), whose sum is σ = 287961924926. Its totient is φ = 132905503800.

The previous prime is 199358255683. The next prime is 199358255711. The reversal of 199358255709 is 907552853991.

199358255709 is a `hidden beast` number, since 1 + 9 + 9 + 3 + 58 + 2 + 5 + 570 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 182679308100 + 16678947609 = 427410^2 + 129147^2 .

It is not a de Polignac number, because 199358255709 - 2¹⁵ = 199358222941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199358255729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11075458642 + ... + 11075458659.

Almost surely, 2^199358255709 is an apocalyptic number.

It is an amenable number.

199358255709 is a deficient number, since it is larger than the sum of its proper divisors (88603669217).

199358255709 is a wasteful number, since it uses less digits than its factorization.

199358255709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22150917307 (or 22150917304 counting only the distinct ones).

The product of its (nonzero) digits is 30618000, while the sum is 63.

The spelling of 199358255709 in words is "one hundred ninety-nine billion, three hundred fifty-eight million, two hundred fifty-five thousand, seven hundred nine".