28055866371 has 64 divisors (see below), whose sum is σ = 42749952000. Its totient is φ = 16236215424.

The previous prime is 28055866361. The next prime is 28055866429. The reversal of 28055866371 is 17366855082.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-28055866371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28055866331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20053530 + ... + 20054928.

It is an arithmetic number, because the mean of its divisors is an integer number (667968000).

Almost surely, 2^28055866371 is an apocalyptic number.

28055866371 is a deficient number, since it is larger than the sum of its proper divisors (14694085629).

28055866371 is a wasteful number, since it uses less digits than its factorization.

28055866371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 28055866371 in words is "twenty-eight billion, fifty-five million, eight hundred sixty-six thousand, three hundred seventy-one".