4888127449921 has 9 divisors (see below), whose sum is σ = 4906963506211. Its totient is φ = 4869363448264.

The previous prime is 4888127449901. The next prime is 4888127449949. The reversal of 4888127449921 is 1299447218884.

The square root of 4888127449921 is 2210911.

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

It can be written as a sum of positive squares in only one way, i.e., 321614886321 + 4566512563600 = 567111^2 + 2136940^2 .

It is not a de Polignac number, because 4888127449921 - 2²³ = 4888119061313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4888127449901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 594730950 + ... + 594739168.

Almost surely, 2^{4888127449921} is an apocalyptic number.

4888127449921 is the 2210911-st square number.

4888127449921 is the 1105456-th centered octagonal number.

It is an amenable number.

4888127449921 is a deficient number, since it is larger than the sum of its proper divisors (18836056290).

4888127449921 is an frugal number, since it uses more digits than its factorization.

4888127449921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16976 (or 8488 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 67.

The spelling of 4888127449921 in words is "four trillion, eight hundred eighty-eight billion, one hundred twenty-seven million, four hundred forty-nine thousand, nine hundred twenty-one".