19269140128 has 48 divisors (see below), whose sum is σ = 43398875520. Its totient is φ = 8249953536.

The previous prime is 19269140117. The next prime is 19269140131. The reversal of 19269140128 is 82104196291.

It is a super-2 number, since 2×19269140128² (a number of 21 digits) contains 22 as substring.

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, 184453 + ... + 269371.

It is an arithmetic number, because the mean of its divisors is an integer number (904143240).

Almost surely, 2^19269140128 is an apocalyptic number.

It is an amenable number.

19269140128 is an abundant number, since it is smaller than the sum of its proper divisors (24129735392).

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

19269140128 is a wasteful number, since it uses less digits than its factorization.

19269140128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85949 (or 85941 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The spelling of 19269140128 in words is "nineteen billion, two hundred sixty-nine million, one hundred forty thousand, one hundred twenty-eight".