28571083136 has 16 divisors (see below), whose sum is σ = 56918954940. Its totient is φ = 14285541504.

The previous prime is 28571083129. The next prime is 28571083157. The reversal of 28571083136 is 63138017582.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111605666 + ... + 111605921.

Almost surely, 2^28571083136 is an apocalyptic number.

It is an amenable number.

28571083136 is a deficient number, since it is larger than the sum of its proper divisors (28347871804).

28571083136 is an equidigital number, since it uses as much as digits as its factorization.

28571083136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223211601 (or 223211589 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 28571083136 in words is "twenty-eight billion, five hundred seventy-one million, eighty-three thousand, one hundred thirty-six".