199775540726448 has 40 divisors (see below), whose sum is σ = 524547253117296. Its totient is φ = 65500177286400.

The previous prime is 199775540726369. The next prime is 199775540726483. The reversal of 199775540726448 is 844627045577991.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34114672743 + ... + 34114678598.

Almost surely, 2^{199775540726448} is an apocalyptic number.

It is an amenable number.

199775540726448 is an abundant number, since it is smaller than the sum of its proper divisors (324771712390848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199775540726448 is a wasteful number, since it uses less digits than its factorization.

199775540726448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68229351413 (or 68229351407 counting only the distinct ones).

The product of its (nonzero) digits is 4267468800, while the sum is 78.

The spelling of 199775540726448 in words is "one hundred ninety-nine trillion, seven hundred seventy-five billion, five hundred forty million, seven hundred twenty-six thousand, four hundred forty-eight".