28810036236 has 48 divisors (see below), whose sum is σ = 70172140640. Its totient is φ = 9190609920.

The previous prime is 28810036223. The next prime is 28810036261. The reversal of 28810036236 is 63263001882.

It is a junction number, because it is equal to n+sod(n) for n = 28810036194 and 28810036203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504781 + ... + 558948.

Almost surely, 2^28810036236 is an apocalyptic number.

It is an amenable number.

28810036236 is an abundant number, since it is smaller than the sum of its proper divisors (41362104404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28810036236 is a wasteful number, since it uses less digits than its factorization.

28810036236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063834 (or 1063832 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The spelling of 28810036236 in words is "twenty-eight billion, eight hundred ten million, thirty-six thousand, two hundred thirty-six".