28571885716 has 24 divisors (see below), whose sum is σ = 54553091040. Its totient is φ = 12985610400.

The previous prime is 28571885711. The next prime is 28571885767. The reversal of 28571885716 is 61758817582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28571885711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364290 + ... + 435718.

It is an arithmetic number, because the mean of its divisors is an integer number (2273045460).

Almost surely, 2^28571885716 is an apocalyptic number.

It is an amenable number.

28571885716 is a deficient number, since it is larger than the sum of its proper divisors (25981205324).

28571885716 is a wasteful number, since it uses less digits than its factorization.

28571885716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80535 (or 80533 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 58.

The spelling of 28571885716 in words is "twenty-eight billion, five hundred seventy-one million, eight hundred eighty-five thousand, seven hundred sixteen".