109044642843 has 12 divisors (see below), whose sum is σ = 157554641400. Its totient is φ = 72675330336.

The previous prime is 109044642827. The next prime is 109044642853. The reversal of 109044642843 is 348246440901.

109044642843 is a `hidden beast` number, since 1 + 0 + 90 + 446 + 42 + 84 + 3 = 666.

It is not a de Polignac number, because 109044642843 - 2⁴ = 109044642827 is a prime.

It is a super-2 number, since 2×109044642843² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109044642853) 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 11 ways as a sum of consecutive naturals, for example, 1725421 + ... + 1787502.

It is an arithmetic number, because the mean of its divisors is an integer number (13129553450).

Almost surely, 2^109044642843 is an apocalyptic number.

109044642843 is a deficient number, since it is larger than the sum of its proper divisors (48509998557).

109044642843 is a wasteful number, since it uses less digits than its factorization.

109044642843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3516378 (or 3516375 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 109044642843 in words is "one hundred nine billion, forty-four million, six hundred forty-two thousand, eight hundred forty-three".