4496863777561 has 15 divisors (see below), whose sum is σ = 4624762236171. Its totient is φ = 4372502304816.

The previous prime is 4496863777547. The next prime is 4496863777589. The reversal of 4496863777561 is 1657773686944.

The square root of 4496863777561 is 2120581.

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

4496863777561 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 7 ways, for example, as 7126567561 + 4489737210000 = 84419^2 + 2118900^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4496863777561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4496863777261) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2903074615 + ... + 2903076163.

Almost surely, 2^{4496863777561} is an apocalyptic number.

4496863777561 is the 2120581-st square number.

4496863777561 is the 1060291-st centered octagonal number.

It is an amenable number.

4496863777561 is a deficient number, since it is larger than the sum of its proper divisors (127898458610).

4496863777561 is an frugal number, since it uses more digits than its factorization.

4496863777561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 1586 counting only the distinct ones).

The product of its digits is 1280240640, while the sum is 73.

The spelling of 4496863777561 in words is "four trillion, four hundred ninety-six billion, eight hundred sixty-three million, seven hundred seventy-seven thousand, five hundred sixty-one".