28086884632 has 16 divisors (see below), whose sum is σ = 52938633600. Its totient is φ = 13969915680.

The previous prime is 28086884603. The next prime is 28086884663. The reversal of 28086884632 is 23648868082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9189207 + ... + 9192262.

It is an arithmetic number, because the mean of its divisors is an integer number (3308664600).

Almost surely, 2^28086884632 is an apocalyptic number.

It is an amenable number.

28086884632 is a deficient number, since it is larger than the sum of its proper divisors (24851748968).

28086884632 is a wasteful number, since it uses less digits than its factorization.

28086884632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18381666 (or 18381662 counting only the distinct ones).

The product of its (nonzero) digits is 7077888, while the sum is 55.

The spelling of 28086884632 in words is "twenty-eight billion, eighty-six million, eight hundred eighty-four thousand, six hundred thirty-two".