6549734961 has 144 divisors (see below), whose sum is σ = 12325307904. Its totient is φ = 3278880000.

The previous prime is 6549734921. The next prime is 6549734969. The reversal of 6549734961 is 1694379456.

6549734961 is a `hidden beast` number, since 6 + 549 + 7 + 3 + 4 + 96 + 1 = 666.

It is not a de Polignac number, because 6549734961 - 2⁶ = 6549734897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6549734898 and 6549734907.

It is not an unprimeable number, because it can be changed into a prime (6549734969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 36186291 + ... + 36186471.

It is an arithmetic number, because the mean of its divisors is an integer number (85592416).

Almost surely, 2^6549734961 is an apocalyptic number.

It is an amenable number.

6549734961 is a deficient number, since it is larger than the sum of its proper divisors (5775572943).

6549734961 is a wasteful number, since it uses less digits than its factorization.

6549734961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 350 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 54.

The square root of 6549734961 is about 80930.4328482185. The cubic root of 6549734961 is about 1871.0033946102.

The spelling of 6549734961 in words is "six billion, five hundred forty-nine million, seven hundred thirty-four thousand, nine hundred sixty-one".