4681954561 has 8 divisors (see below), whose sum is σ = 4856397480. Its totient is φ = 4508378112.

The previous prime is 4681954493. The next prime is 4681954567. The reversal of 4681954561 is 1654591864.

It is a happy number.

4681954561 is digitally balanced in base 3, 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 4 ways, for example, as 605898225 + 4076056336 = 24615^2 + 63844^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4681954561 - 2²⁵ = 4648400129 is a prime.

It is a super-2 number, since 2×4681954561² = 43841397022537405442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4681954567) 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 7 ways as a sum of consecutive naturals, for example, 205600 + ... + 227233.

It is an arithmetic number, because the mean of its divisors is an integer number (607049685).

Almost surely, 2^4681954561 is an apocalyptic number.

It is an amenable number.

4681954561 is a deficient number, since it is larger than the sum of its proper divisors (174442919).

4681954561 is a wasteful number, since it uses less digits than its factorization.

4681954561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433235.

The product of its digits is 1036800, while the sum is 49.

The square root of 4681954561 is about 68424.8095430305. The cubic root of 4681954561 is about 1672.9221504109.

The spelling of 4681954561 in words is "four billion, six hundred eighty-one million, nine hundred fifty-four thousand, five hundred sixty-one".