10544777857 has 2 divisors, whose sum is σ = 10544777858. Its totient is φ = 10544777856.

The previous prime is 10544777843. The next prime is 10544777861. The reversal of 10544777857 is 75877744501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6696312561 + 3848465296 = 81831^2 + 62036^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10544777857 is a prime.

It is a super-2 number, since 2×10544777857² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10544777798 and 10544777807.

It is not a weakly prime, because it can be changed into another prime (10544777897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5272388928 + 5272388929.

It is an arithmetic number, because the mean of its divisors is an integer number (5272388929).

Almost surely, 2^10544777857 is an apocalyptic number.

It is an amenable number.

10544777857 is a deficient number, since it is larger than the sum of its proper divisors (1).

10544777857 is an equidigital number, since it uses as much as digits as its factorization.

10544777857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7683200, while the sum is 55.

The spelling of 10544777857 in words is "ten billion, five hundred forty-four million, seven hundred seventy-seven thousand, eight hundred fifty-seven".