9680542381449 has 27 divisors (see below), whose sum is σ = 14854162992487. Its totient is φ = 6073966244544.

The previous prime is 9680542381439. The next prime is 9680542381501. The reversal of 9680542381449 is 9441832450869.

The square root of 9680542381449 is 3111357.

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

9680542381449 is a `hidden beast` number, since 9 + 6 + 8 + 0 + 542 + 3 + 81 + 4 + 4 + 9 = 666.

9680542381449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7536754449225 + 2143787932224 = 2745315^2 + 1464168^2 .

It is not a de Polignac number, because 9680542381449 - 2⁹ = 9680542380937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9680542381439) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 158648704 + ... + 158709710.

Almost surely, 2^{9680542381449} is an apocalyptic number.

9680542381449 is the 3111357-th square number.

9680542381449 is the 1555679-th centered octagonal number.

It is an amenable number.

9680542381449 is a deficient number, since it is larger than the sum of its proper divisors (5173620611038).

9680542381449 is an frugal number, since it uses more digits than its factorization.

9680542381449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122054 (or 61027 counting only the distinct ones).

The product of its (nonzero) digits is 59719680, while the sum is 63.

The spelling of 9680542381449 in words is "nine trillion, six hundred eighty billion, five hundred forty-two million, three hundred eighty-one thousand, four hundred forty-nine".