28571745742888 has 32 divisors (see below), whose sum is σ = 53726767605000. Its totient is φ = 14244609611520.

The previous prime is 28571745742873. The next prime is 28571745742931. The reversal of 28571745742888 is 88824754717582.

It can be written as a sum of positive squares in 4 ways, for example, as 15028477248964 + 13543268493924 = 3876658^2 + 3680118^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 158800018 + ... + 158979838.

Almost surely, 2^{28571745742888} is an apocalyptic number.

It is an amenable number.

28571745742888 is a deficient number, since it is larger than the sum of its proper divisors (25155021862112).

28571745742888 is a wasteful number, since it uses less digits than its factorization.

28571745742888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237085 (or 237081 counting only the distinct ones).

The product of its digits is 2247884800, while the sum is 76.

The spelling of 28571745742888 in words is "twenty-eight trillion, five hundred seventy-one billion, seven hundred forty-five million, seven hundred forty-two thousand, eight hundred eighty-eight".