28847453471 has 2 divisors, whose sum is σ = 28847453472. Its totient is φ = 28847453470.

The previous prime is 28847453449. The next prime is 28847453477. The reversal of 28847453471 is 17435474882.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28847453471 is a prime.

It is a super-3 number, since 3×28847453471³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28847453477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14423726735 + 14423726736.

It is an arithmetic number, because the mean of its divisors is an integer number (14423726736).

Almost surely, 2^28847453471 is an apocalyptic number.

28847453471 is a deficient number, since it is larger than the sum of its proper divisors (1).

28847453471 is an equidigital number, since it uses as much as digits as its factorization.

28847453471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6021120, while the sum is 53.

The spelling of 28847453471 in words is "twenty-eight billion, eight hundred forty-seven million, four hundred fifty-three thousand, four hundred seventy-one".