28744540571 has 2 divisors, whose sum is σ = 28744540572. Its totient is φ = 28744540570.

The previous prime is 28744540547. The next prime is 28744540603. The reversal of 28744540571 is 17504544782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28744540571 - 2³⁰ = 27670798747 is a prime.

It is a super-2 number, since 2×28744540571² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (28744540171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14372270285 + 14372270286.

It is an arithmetic number, because the mean of its divisors is an integer number (14372270286).

Almost surely, 2^28744540571 is an apocalyptic number.

28744540571 is a deficient number, since it is larger than the sum of its proper divisors (1).

28744540571 is an equidigital number, since it uses as much as digits as its factorization.

28744540571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1254400, while the sum is 47.

The spelling of 28744540571 in words is "twenty-eight billion, seven hundred forty-four million, five hundred forty thousand, five hundred seventy-one".