199642285975 has 12 divisors (see below), whose sum is σ = 270061565400. Its totient is φ = 145194389600.

The previous prime is 199642285961. The next prime is 199642285987. The reversal of 199642285975 is 579582246991.

It is not a de Polignac number, because 199642285975 - 2³³ = 191052351383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199642285975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362985700 + ... + 362986249.

It is an arithmetic number, because the mean of its divisors is an integer number (22505130450).

Almost surely, 2^199642285975 is an apocalyptic number.

199642285975 is a deficient number, since it is larger than the sum of its proper divisors (70419279425).

199642285975 is a wasteful number, since it uses less digits than its factorization.

199642285975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 725971970 (or 725971965 counting only the distinct ones).

The product of its digits is 97977600, while the sum is 67.

The spelling of 199642285975 in words is "one hundred ninety-nine billion, six hundred forty-two million, two hundred eighty-five thousand, nine hundred seventy-five".