28131266750 has 16 divisors (see below), whose sum is σ = 52661731824. Its totient is φ = 11252506600.

The previous prime is 28131266711. The next prime is 28131266797. The reversal of 28131266750 is 5766213182.

It is a junction number, because it is equal to n+sod(n) for n = 28131266698 and 28131266707.

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, 56262284 + ... + 56262783.

It is an arithmetic number, because the mean of its divisors is an integer number (3291358239).

Almost surely, 2^28131266750 is an apocalyptic number.

28131266750 is a deficient number, since it is larger than the sum of its proper divisors (24530465074).

28131266750 is a wasteful number, since it uses less digits than its factorization.

28131266750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112525084 (or 112525074 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 28131266750 in words is "twenty-eight billion, one hundred thirty-one million, two hundred sixty-six thousand, seven hundred fifty".