28030569491 has 8 divisors (see below), whose sum is σ = 28626177600. Its totient is φ = 27441198400.

The previous prime is 28030569431. The next prime is 28030569529. The reversal of 28030569491 is 19496503082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28030569491 - 2²² = 28026375187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28030569431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550171 + ... + 1568148.

It is an arithmetic number, because the mean of its divisors is an integer number (3578272200).

Almost surely, 2^28030569491 is an apocalyptic number.

28030569491 is a deficient number, since it is larger than the sum of its proper divisors (595608109).

28030569491 is a wasteful number, since it uses less digits than its factorization.

28030569491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3118509.

The product of its (nonzero) digits is 466560, while the sum is 47.

The spelling of 28030569491 in words is "twenty-eight billion, thirty million, five hundred sixty-nine thousand, four hundred ninety-one".