4895777681 has 4 divisors (see below), whose sum is σ = 4896194100. Its totient is φ = 4895361264.

The previous prime is 4895777647. The next prime is 4895777683. The reversal of 4895777681 is 1867775984.

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 3941956225 + 953821456 = 62785^2 + 30884^2 .

It is a cyclic number.

It is not a de Polignac number, because 4895777681 - 2¹⁰ = 4895776657 is a prime.

It is a super-2 number, since 2×4895777681² = 47937278203555475522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4895777683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190046 + ... + 214263.

It is an arithmetic number, because the mean of its divisors is an integer number (1224048525).

Almost surely, 2^4895777681 is an apocalyptic number.

It is an amenable number.

4895777681 is a deficient number, since it is larger than the sum of its proper divisors (416419).

4895777681 is a wasteful number, since it uses less digits than its factorization.

4895777681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416418.

The product of its digits is 23708160, while the sum is 62.

The square root of 4895777681 is about 69969.8340786942. The cubic root of 4895777681 is about 1698.0112477133.

The spelling of 4895777681 in words is "four billion, eight hundred ninety-five million, seven hundred seventy-seven thousand, six hundred eighty-one".