19027397088 has 144 divisors (see below), whose sum is σ = 65093857920. Its totient is φ = 5150262528.

The previous prime is 19027397071. The next prime is 19027397099. The reversal of 19027397088 is 88079372091.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

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, 210070 + ... + 286677.

It is an arithmetic number, because the mean of its divisors is an integer number (452040680).

Almost surely, 2^19027397088 is an apocalyptic number.

19027397088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19027397088 is an abundant number, since it is smaller than the sum of its proper divisors (46066460832).

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

19027397088 is a wasteful number, since it uses less digits than its factorization.

19027397088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496789 (or 496778 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 19027397088 in words is "nineteen billion, twenty-seven million, three hundred ninety-seven thousand, eighty-eight".