4054636561 has 8 divisors (see below), whose sum is σ = 4384488960. Its totient is φ = 3734933568.

The previous prime is 4054636559. The next prime is 4054636583. The reversal of 4054636561 is 1656364504.

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 4054636561 - 2¹ = 4054636559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4054636961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536521 + ... + 2538118.

It is an arithmetic number, because the mean of its divisors is an integer number (548061120).

Almost surely, 2^4054636561 is an apocalyptic number.

It is an amenable number.

4054636561 is a deficient number, since it is larger than the sum of its proper divisors (329852399).

4054636561 is a wasteful number, since it uses less digits than its factorization.

4054636561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5074703.

The product of its (nonzero) digits is 259200, while the sum is 40.

The square root of 4054636561 is about 63676.0281503173. The cubic root of 4054636561 is about 1594.5959034344.

The spelling of 4054636561 in words is "four billion, fifty-four million, six hundred thirty-six thousand, five hundred sixty-one".