28432583884891 has 2 divisors, whose sum is σ = 28432583884892. Its totient is φ = 28432583884890.

The previous prime is 28432583884877. The next prime is 28432583884927. The reversal of 28432583884891 is 19848838523482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28432583884891 - 2³⁹ = 27882828071003 is a prime.

It is not a weakly prime, because it can be changed into another prime (28432583284891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14216291942445 + 14216291942446.

It is an arithmetic number, because the mean of its divisors is an integer number (14216291942446).

Almost surely, 2^{28432583884891} is an apocalyptic number.

28432583884891 is a deficient number, since it is larger than the sum of its proper divisors (1).

28432583884891 is an equidigital number, since it uses as much as digits as its factorization.

28432583884891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 849346560, while the sum is 73.

The spelling of 28432583884891 in words is "twenty-eight trillion, four hundred thirty-two billion, five hundred eighty-three million, eight hundred eighty-four thousand, eight hundred ninety-one".