28775735516 has 24 divisors (see below), whose sum is σ = 55389517680. Its totient is φ = 13079877360.

The previous prime is 28775735503. The next prime is 28775735531. The reversal of 28775735516 is 61553757782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2697131 + ... + 2707778.

It is an arithmetic number, because the mean of its divisors is an integer number (2307896570).

Almost surely, 2^28775735516 is an apocalyptic number.

It is an amenable number.

28775735516 is a deficient number, since it is larger than the sum of its proper divisors (26613782164).

28775735516 is a wasteful number, since it uses less digits than its factorization.

28775735516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404946 (or 5404922 counting only the distinct ones).

The product of its digits is 12348000, while the sum is 56.

The spelling of 28775735516 in words is "twenty-eight billion, seven hundred seventy-five million, seven hundred thirty-five thousand, five hundred sixteen".