28891245759039 has 6 divisors (see below), whose sum is σ = 41731799429736. Its totient is φ = 19260830506020.

The previous prime is 28891245759029. The next prime is 28891245759043. The reversal of 28891245759039 is 93095754219882.

28891245759039 is a `hidden beast` number, since 2 + 8 + 8 + 9 + 1 + 24 + 5 + 7 + 590 + 3 + 9 = 666.

It is not a de Polignac number, because 28891245759039 - 2⁷ = 28891245758911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28891245759029) 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, 1605069208827 + ... + 1605069208844.

It is an arithmetic number, because the mean of its divisors is an integer number (6955299904956).

Almost surely, 2^{28891245759039} is an apocalyptic number.

28891245759039 is a deficient number, since it is larger than the sum of its proper divisors (12840553670697).

28891245759039 is a wasteful number, since it uses less digits than its factorization.

28891245759039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3210138417677 (or 3210138417674 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 72.

The spelling of 28891245759039 in words is "twenty-eight trillion, eight hundred ninety-one billion, two hundred forty-five million, seven hundred fifty-nine thousand, thirty-nine".