4863445661321 has 8 divisors (see below), whose sum is σ = 5379112457544. Its totient is φ = 4368001092480.

The previous prime is 4863445661311. The next prime is 4863445661353. The reversal of 4863445661321 is 1231665443684.

It can be written as a sum of positive squares in 4 ways, for example, as 633990175225 + 4229455486096 = 796235^2 + 2056564^2 .

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 4863445661321 - 2³⁰ = 4862371919497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4863445661311) 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, 5055556340 + ... + 5055557301.

It is an arithmetic number, because the mean of its divisors is an integer number (672389057193).

Almost surely, 2^{4863445661321} is an apocalyptic number.

It is an amenable number.

4863445661321 is a deficient number, since it is larger than the sum of its proper divisors (515666796223).

4863445661321 is a wasteful number, since it uses less digits than its factorization.

4863445661321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111113691.

The product of its digits is 9953280, while the sum is 53.

The spelling of 4863445661321 in words is "four trillion, eight hundred sixty-three billion, four hundred forty-five million, six hundred sixty-one thousand, three hundred twenty-one".