190511064705993 has 8 divisors (see below), whose sum is σ = 254459612405856. Its totient is φ = 126784946738400.

The previous prime is 190511064705971. The next prime is 190511064706043. The reversal of 190511064705993 is 399507460115091.

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

It is not a de Polignac number, because 190511064705993 - 2¹⁰ = 190511064704969 is a prime.

It is a super-2 number, since 2×190511064705993² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190511064705893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55607431068 + ... + 55607434493.

It is an arithmetic number, because the mean of its divisors is an integer number (31807451550732).

Almost surely, 2^{190511064705993} is an apocalyptic number.

It is an amenable number.

190511064705993 is a deficient number, since it is larger than the sum of its proper divisors (63948547699863).

190511064705993 is a wasteful number, since it uses less digits than its factorization.

190511064705993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111214866135.

The product of its (nonzero) digits is 9185400, while the sum is 60.

The spelling of 190511064705993 in words is "one hundred ninety trillion, five hundred eleven billion, sixty-four million, seven hundred five thousand, nine hundred ninety-three".