19796759916025 has 9 divisors (see below), whose sum is σ = 24548009881903. Its totient is φ = 15837390135400.

The previous prime is 19796759916019. The next prime is 19796759916047. The reversal of 19796759916025 is 52061995769791.

The square root of 19796759916025 is 4449355.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7126833569769 + 12669926346256 = 2669613^2 + 3559484^2 .

It is not a de Polignac number, because 19796759916025 - 2²⁵ = 19796726361593 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 21801840 + ... + 22691710.

Almost surely, 2^{19796759916025} is an apocalyptic number.

19796759916025 is the 4449355-th square number.

19796759916025 is the 2224678-th centered octagonal number.

It is an amenable number.

19796759916025 is a deficient number, since it is larger than the sum of its proper divisors (4751249965878).

19796759916025 is an frugal number, since it uses more digits than its factorization.

19796759916025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779752 (or 889876 counting only the distinct ones).

The product of its (nonzero) digits is 578680200, while the sum is 76.

The spelling of 19796759916025 in words is "nineteen trillion, seven hundred ninety-six billion, seven hundred fifty-nine million, nine hundred sixteen thousand, twenty-five".