28783854571 has 2 divisors, whose sum is σ = 28783854572. Its totient is φ = 28783854570.

The previous prime is 28783854499. The next prime is 28783854587. The reversal of 28783854571 is 17545838782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28783854571 - 2⁷ = 28783854443 is a prime.

It is not a weakly prime, because it can be changed into another prime (28783824571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14391927285 + 14391927286.

It is an arithmetic number, because the mean of its divisors is an integer number (14391927286).

Almost surely, 2^28783854571 is an apocalyptic number.

28783854571 is a deficient number, since it is larger than the sum of its proper divisors (1).

28783854571 is an equidigital number, since it uses as much as digits as its factorization.

28783854571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15052800, while the sum is 58.

The spelling of 28783854571 in words is "twenty-eight billion, seven hundred eighty-three million, eight hundred fifty-four thousand, five hundred seventy-one".