28089200345 has 16 divisors (see below), whose sum is σ = 34064768640. Its totient is φ = 22233014784.

The previous prime is 28089200341. The next prime is 28089200357. The reversal of 28089200345 is 54300298082.

It is a cyclic number.

It is not a de Polignac number, because 28089200345 - 2² = 28089200341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28089200341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2167796 + ... + 2180714.

It is an arithmetic number, because the mean of its divisors is an integer number (2129048040).

Almost surely, 2^28089200345 is an apocalyptic number.

It is an amenable number.

28089200345 is a deficient number, since it is larger than the sum of its proper divisors (5975568295).

28089200345 is a wasteful number, since it uses less digits than its factorization.

28089200345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17504.

The product of its (nonzero) digits is 138240, while the sum is 41.

The spelling of 28089200345 in words is "twenty-eight billion, eighty-nine million, two hundred thousand, three hundred forty-five".