190734093649 has 16 divisors (see below), whose sum is σ = 208570576896. Its totient is φ = 172980882000.

The previous prime is 190734093601. The next prime is 190734093653. The reversal of 190734093649 is 946390437091.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 190734093649 - 2³⁷ = 53295140177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 190734093649.

It is not an unprimeable number, because it can be changed into a prime (190734093659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9678484 + ... + 9698170.

It is an arithmetic number, because the mean of its divisors is an integer number (13035661056).

Almost surely, 2^190734093649 is an apocalyptic number.

It is an amenable number.

190734093649 is a deficient number, since it is larger than the sum of its proper divisors (17836483247).

190734093649 is a wasteful number, since it uses less digits than its factorization.

190734093649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21756.

The product of its (nonzero) digits is 4408992, while the sum is 55.

The spelling of 190734093649 in words is "one hundred ninety billion, seven hundred thirty-four million, ninety-three thousand, six hundred forty-nine".