28041647859 has 6 divisors (see below), whose sum is σ = 40504602476. Its totient is φ = 18694431900.

The previous prime is 28041647833. The next prime is 28041647861. The reversal of 28041647859 is 95874614082.

It is a happy number.

28041647859 is a `hidden beast` number, since 2 + 80 + 41 + 6 + 478 + 59 = 666.

It is not a de Polignac number, because 28041647859 - 2¹⁶ = 28041582323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28041642859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1557869317 + ... + 1557869334.

Almost surely, 2^28041647859 is an apocalyptic number.

28041647859 is a deficient number, since it is larger than the sum of its proper divisors (12462954617).

28041647859 is a wasteful number, since it uses less digits than its factorization.

28041647859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3115738657 (or 3115738654 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 28041647859 in words is "twenty-eight billion, forty-one million, six hundred forty-seven thousand, eight hundred fifty-nine".