5777265718661 has 2 divisors, whose sum is σ = 5777265718662. Its totient is φ = 5777265718660.

The previous prime is 5777265718633. The next prime is 5777265718669. The reversal of 5777265718661 is 1668175627775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3653851365025 + 2123414353636 = 1911505^2 + 1457194^2 .

It is a cyclic number.

It is not a de Polignac number, because 5777265718661 - 2³⁰ = 5776191976837 is a prime.

It is a super-3 number, since 3×5777265718661³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5777265718591 and 5777265718600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5777265718669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2888632859330 + 2888632859331.

It is an arithmetic number, because the mean of its divisors is an integer number (2888632859331).

Almost surely, 2^{5777265718661} is an apocalyptic number.

It is an amenable number.

5777265718661 is a deficient number, since it is larger than the sum of its proper divisors (1).

5777265718661 is an equidigital number, since it uses as much as digits as its factorization.

5777265718661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207446400, while the sum is 68.

The spelling of 5777265718661 in words is "five trillion, seven hundred seventy-seven billion, two hundred sixty-five million, seven hundred eighteen thousand, six hundred sixty-one".