19745996472576 has 144 divisors (see below), whose sum is σ = 63700784320320. Its totient is φ = 5983635271680.

The previous prime is 19745996472571. The next prime is 19745996472623. The reversal of 19745996472576 is 67527469954791.

19745996472576 is a `hidden beast` number, since 1 + 9 + 7 + 4 + 5 + 9 + 96 + 472 + 57 + 6 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 19745996472495 and 19745996472504.

It is not an unprimeable number, because it can be changed into a prime (19745996472571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129777165 + ... + 129929228.

It is an arithmetic number, because the mean of its divisors is an integer number (442366557780).

Almost surely, 2^{19745996472576} is an apocalyptic number.

19745996472576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19745996472576 is an abundant number, since it is smaller than the sum of its proper divisors (43954787847744).

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

19745996472576 is a wasteful number, since it uses less digits than its factorization.

19745996472576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259706429 (or 259706409 counting only the distinct ones).

The product of its digits is 7201353600, while the sum is 81.

The spelling of 19745996472576 in words is "nineteen trillion, seven hundred forty-five billion, nine hundred ninety-six million, four hundred seventy-two thousand, five hundred seventy-six".