26919444189 has 16 divisors (see below), whose sum is σ = 41458824000. Its totient is φ = 15355119360.

The previous prime is 26919444137. The next prime is 26919444217. The reversal of 26919444189 is 98144491962.

It is a happy number.

It is not a de Polignac number, because 26919444189 - 2¹⁷ = 26919313117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26919444109) 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, 23991814 + ... + 23992935.

It is an arithmetic number, because the mean of its divisors is an integer number (2591176500).

Almost surely, 2^26919444189 is an apocalyptic number.

It is an amenable number.

26919444189 is a deficient number, since it is larger than the sum of its proper divisors (14539379811).

26919444189 is a wasteful number, since it uses less digits than its factorization.

26919444189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47984780.

The product of its digits is 4478976, while the sum is 57.

The spelling of 26919444189 in words is "twenty-six billion, nine hundred nineteen million, four hundred forty-four thousand, one hundred eighty-nine".