190771007346838 has 16 divisors (see below), whose sum is σ = 286476396585984. Its totient is φ = 95278891657320.

The previous prime is 190771007346757. The next prime is 190771007346841. The reversal of 190771007346838 is 838643700177091.

It is a self number, because there is not a number n which added to its sum of digits gives 190771007346838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19031931 + ... + 27271897.

It is an arithmetic number, because the mean of its divisors is an integer number (17904774786624).

Almost surely, 2^{190771007346838} is an apocalyptic number.

190771007346838 is a deficient number, since it is larger than the sum of its proper divisors (95705389239146).

190771007346838 is a wasteful number, since it uses less digits than its factorization.

190771007346838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8252907.

The product of its (nonzero) digits is 42674688, while the sum is 64.

The spelling of 190771007346838 in words is "one hundred ninety trillion, seven hundred seventy-one billion, seven million, three hundred forty-six thousand, eight hundred thirty-eight".