28652457242591 has 48 divisors (see below), whose sum is σ = 36906457109760. Its totient is φ = 22034922094080.

The previous prime is 28652457242567. The next prime is 28652457242683. The reversal of 28652457242591 is 19524275425682.

It is a de Polignac number, because none of the positive numbers 2^k-28652457242591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28652457242501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4986290 + ... + 9064656.

It is an arithmetic number, because the mean of its divisors is an integer number (768884523120).

Almost surely, 2^{28652457242591} is an apocalyptic number.

28652457242591 is a deficient number, since it is larger than the sum of its proper divisors (8253999867169).

28652457242591 is a wasteful number, since it uses less digits than its factorization.

28652457242591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078704 (or 4078697 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 62.

The spelling of 28652457242591 in words is "twenty-eight trillion, six hundred fifty-two billion, four hundred fifty-seven million, two hundred forty-two thousand, five hundred ninety-one".