19425590466 has 24 divisors (see below), whose sum is σ = 38930968080. Its totient is φ = 6461909352.

The previous prime is 19425590417. The next prime is 19425590491. The reversal of 19425590466 is 66409552491.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8492775 + ... + 8495061.

It is an arithmetic number, because the mean of its divisors is an integer number (1622123670).

Almost surely, 2^19425590466 is an apocalyptic number.

19425590466 is an abundant number, since it is smaller than the sum of its proper divisors (19505377614).

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

19425590466 is an frugal number, since it uses more digits than its factorization.

19425590466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5198 (or 2911 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 19425590466 in words is "nineteen billion, four hundred twenty-five million, five hundred ninety thousand, four hundred sixty-six".