4445688898 has 16 divisors (see below), whose sum is σ = 7827159744. Its totient is φ = 1853800560.

The previous prime is 4445688857. The next prime is 4445688899. The reversal of 4445688898 is 8988865444.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4445688899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4290688 + ... + 4291723.

It is an arithmetic number, because the mean of its divisors is an integer number (489197484).

Almost surely, 2^4445688898 is an apocalyptic number.

4445688898 is a deficient number, since it is larger than the sum of its proper divisors (3381470846).

4445688898 is a wasteful number, since it uses less digits than its factorization.

4445688898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8582457.

The product of its digits is 70778880, while the sum is 64.

The square root of 4445688898 is about 66675.9994150819. Note that the first 3 decimals coincide. The cubic root of 4445688898 is about 1644.2948228859.

The spelling of 4445688898 in words is "four billion, four hundred forty-five million, six hundred eighty-eight thousand, eight hundred ninety-eight".