28346024891 has 2 divisors, whose sum is σ = 28346024892. Its totient is φ = 28346024890.

The previous prime is 28346024887. The next prime is 28346024951. The reversal of 28346024891 is 19842064382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28346024891 - 2² = 28346024887 is a prime.

It is not a weakly prime, because it can be changed into another prime (28346024191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14173012445 + 14173012446.

It is an arithmetic number, because the mean of its divisors is an integer number (14173012446).

Almost surely, 2^28346024891 is an apocalyptic number.

28346024891 is a deficient number, since it is larger than the sum of its proper divisors (1).

28346024891 is an equidigital number, since it uses as much as digits as its factorization.

28346024891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 28346024891 in words is "twenty-eight billion, three hundred forty-six million, twenty-four thousand, eight hundred ninety-one".