28700045888 has 14 divisors (see below), whose sum is σ = 56951653686. Its totient is φ = 14350022912.

The previous prime is 28700045839. The next prime is 28700045921. The reversal of 28700045888 is 88854000782.

It can be written as a sum of positive squares in only one way, i.e., 24777278464 + 3922767424 = 157408^2 + 62632^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224219045 + ... + 224219172.

Almost surely, 2^28700045888 is an apocalyptic number.

It is an amenable number.

28700045888 is a deficient number, since it is larger than the sum of its proper divisors (28251607798).

28700045888 is an equidigital number, since it uses as much as digits as its factorization.

28700045888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448438229 (or 448438219 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 50.

The spelling of 28700045888 in words is "twenty-eight billion, seven hundred million, forty-five thousand, eight hundred eighty-eight".