19796012431441 has 9 divisors (see below), whose sum is σ = 19979782887771. Its totient is φ = 19613917117224.

The previous prime is 19796012431417. The next prime is 19796012431501. The reversal of 19796012431441 is 14413421069791.

The square root of 19796012431441 is 4449271.

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., 13797725691841 + 5998286739600 = 3714529^2 + 2449140^2 .

It is not a de Polignac number, because 19796012431441 - 2¹⁷ = 19796012300369 is a prime.

It is a super-2 number, since 2×19796012431441² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19796012431841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 484950130 + ... + 484990948.

It is an arithmetic number, because the mean of its divisors is an integer number (2219975876419).

Almost surely, 2^{19796012431441} is an apocalyptic number.

19796012431441 is the 4449271-st square number.

19796012431441 is the 2224636-th centered octagonal number.

It is an amenable number.

19796012431441 is a deficient number, since it is larger than the sum of its proper divisors (183770456330).

19796012431441 is an frugal number, since it uses more digits than its factorization.

19796012431441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81856 (or 40928 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 19796012431441 in words is "nineteen trillion, seven hundred ninety-six billion, twelve million, four hundred thirty-one thousand, four hundred forty-one".