544463808857 has 2 divisors, whose sum is σ = 544463808858. Its totient is φ = 544463808856.

The previous prime is 544463808853. The next prime is 544463808869. The reversal of 544463808857 is 758808364445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484097284441 + 60366524416 = 695771^2 + 245696^2 .

It is a cyclic number.

It is not a de Polignac number, because 544463808857 - 2² = 544463808853 is a prime.

It is a super-3 number, since 3×544463808857³ (a number of 36 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 544463808857.

It is not a weakly prime, because it can be changed into another prime (544463808851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272231904428 + 272231904429.

It is an arithmetic number, because the mean of its divisors is an integer number (272231904429).

Almost surely, 2^544463808857 is an apocalyptic number.

It is an amenable number.

544463808857 is a deficient number, since it is larger than the sum of its proper divisors (1).

544463808857 is an equidigital number, since it uses as much as digits as its factorization.

544463808857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103219200, while the sum is 62.

The spelling of 544463808857 in words is "five hundred forty-four billion, four hundred sixty-three million, eight hundred eight thousand, eight hundred fifty-seven".