19020718128 has 40 divisors (see below), whose sum is σ = 50831233200. Its totient is φ = 6121609984.

The previous prime is 19020718117. The next prime is 19020718133. The reversal of 19020718128 is 82181702091.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6830763 + ... + 6833546.

It is an arithmetic number, because the mean of its divisors is an integer number (1270780830).

Almost surely, 2^19020718128 is an apocalyptic number.

It is an amenable number.

19020718128 is an abundant number, since it is smaller than the sum of its proper divisors (31810515072).

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

19020718128 is a wasteful number, since it uses less digits than its factorization.

19020718128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13664349 (or 13664343 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 39.

It can be divided in two parts, 190207 and 18128, that added together give a triangular number (208335 = T₆₄₅).

The spelling of 19020718128 in words is "nineteen billion, twenty million, seven hundred eighteen thousand, one hundred twenty-eight".