19028844720 has 120 divisors (see below), whose sum is σ = 63937026816. Its totient is φ = 5071832064.

The previous prime is 19028844701. The next prime is 19028844733. The reversal of 19028844720 is 2744882091.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1775217 + ... + 1785903.

Almost surely, 2^19028844720 is an apocalyptic number.

19028844720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19028844720 is an abundant number, since it is smaller than the sum of its proper divisors (44908182096).

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

19028844720 is a wasteful number, since it uses less digits than its factorization.

19028844720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13179 (or 13170 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The spelling of 19028844720 in words is "nineteen billion, twenty-eight million, eight hundred forty-four thousand, seven hundred twenty".