4928450905681 has 4 divisors (see below), whose sum is σ = 4930218011700. Its totient is φ = 4926683799664.

The previous prime is 4928450905669. The next prime is 4928450905699. The reversal of 4928450905681 is 1865090548294.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3310871376400 + 1617579529281 = 1819580^2 + 1271841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4928450905681 is a prime.

It is a super-2 number, since 2×4928450905681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4928450905981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883548826 + ... + 883554403.

It is an arithmetic number, because the mean of its divisors is an integer number (1232554502925).

Almost surely, 2^{4928450905681} is an apocalyptic number.

It is an amenable number.

4928450905681 is a deficient number, since it is larger than the sum of its proper divisors (1767106019).

4928450905681 is a wasteful number, since it uses less digits than its factorization.

4928450905681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767106018.

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 4928450905681 in words is "four trillion, nine hundred twenty-eight billion, four hundred fifty million, nine hundred five thousand, six hundred eighty-one".