194535872769 has 32 divisors (see below), whose sum is σ = 296915584000. Its totient is φ = 110983535424.

The previous prime is 194535872753. The next prime is 194535872801. The reversal of 194535872769 is 967278535491.

It is a happy number.

194535872769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194535872769 - 2⁴ = 194535872753 is a prime.

It is a super-2 number, since 2×194535872769² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (194535872669) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 59690262 + ... + 59693520.

It is an arithmetic number, because the mean of its divisors is an integer number (9278612000).

Almost surely, 2^194535872769 is an apocalyptic number.

It is an amenable number.

194535872769 is a deficient number, since it is larger than the sum of its proper divisors (102379711231).

194535872769 is a wasteful number, since it uses less digits than its factorization.

194535872769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6997.

The product of its digits is 114307200, while the sum is 66.

The spelling of 194535872769 in words is "one hundred ninety-four billion, five hundred thirty-five million, eight hundred seventy-two thousand, seven hundred sixty-nine".