19028927888 has 20 divisors (see below), whose sum is σ = 36872170908. Its totient is φ = 9513528960.

The previous prime is 19028927791. The next prime is 19028927903. The reversal of 19028927888 is 88872982091.

It can be written as a sum of positive squares in 2 ways, for example, as 17820114064 + 1208813824 = 133492^2 + 34768^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19028927888.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127370 + ... + 232982.

Almost surely, 2^19028927888 is an apocalyptic number.

It is an amenable number.

19028927888 is a deficient number, since it is larger than the sum of its proper divisors (17843243020).

19028927888 is a wasteful number, since it uses less digits than its factorization.

19028927888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116882 (or 116876 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 62.

The spelling of 19028927888 in words is "nineteen billion, twenty-eight million, nine hundred twenty-seven thousand, eight hundred eighty-eight".