28060640850 has 192 divisors, whose sum is σ = 76829368320. Its totient is φ = 6721440000.

The previous prime is 28060640843. The next prime is 28060640857. The reversal of 28060640850 is 5804606082.

It is an interprime number because it is at equal distance from previous prime (28060640843) and next prime (28060640857).

It is a junction number, because it is equal to n+sod(n) for n = 28060640799 and 28060640808.

It is not an unprimeable number, because it can be changed into a prime (28060640857) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 84775185 + ... + 84775515.

It is an arithmetic number, because the mean of its divisors is an integer number (400152960).

Almost surely, 2^28060640850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28060640850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38414684160).

28060640850 is an abundant number, since it is smaller than the sum of its proper divisors (48768727470).

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

28060640850 is a wasteful number, since it uses less digits than its factorization.

28060640850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The spelling of 28060640850 in words is "twenty-eight billion, sixty million, six hundred forty thousand, eight hundred fifty".