28296668650 has 48 divisors (see below), whose sum is σ = 56753242560. Its totient is φ = 10461398400.

The previous prime is 28296668611. The next prime is 28296668651. The reversal of 28296668650 is 5686669282.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28296668651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324294 + ... + 402193.

It is an arithmetic number, because the mean of its divisors is an integer number (1182359220).

Almost surely, 2^28296668650 is an apocalyptic number.

28296668650 is an abundant number, since it is smaller than the sum of its proper divisors (28456573910).

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

28296668650 is a wasteful number, since it uses less digits than its factorization.

28296668650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726559 (or 726554 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 58.

The spelling of 28296668650 in words is "twenty-eight billion, two hundred ninety-six million, six hundred sixty-eight thousand, six hundred fifty".