19427025080864 has 48 divisors (see below), whose sum is σ = 40464318787200. Its totient is φ = 9155562925824.

The previous prime is 19427025080843. The next prime is 19427025080873. The reversal of 19427025080864 is 46808052072491.

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, 80977544 + ... + 81217095.

It is an arithmetic number, because the mean of its divisors is an integer number (843006641400).

Almost surely, 2^{19427025080864} is an apocalyptic number.

It is an amenable number.

19427025080864 is an abundant number, since it is smaller than the sum of its proper divisors (21037293706336).

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

19427025080864 is a wasteful number, since it uses less digits than its factorization.

19427025080864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162194865 (or 162194857 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 56.

The spelling of 19427025080864 in words is "nineteen trillion, four hundred twenty-seven billion, twenty-five million, eighty thousand, eight hundred sixty-four".