945453505354549 has 2 divisors, whose sum is σ = 945453505354550. Its totient is φ = 945453505354548.

The previous prime is 945453505354541. The next prime is 945453505354667.

945453505354549 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 887781176061649 + 57672329292900 = 29795657^2 + 7594230^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 945453505354549 - 2³ = 945453505354541 is a prime.

It is a super-2 number, since 2×945453505354549² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945453505354541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472726752677274 + 472726752677275.

It is an arithmetic number, because the mean of its divisors is an integer number (472726752677275).

Almost surely, 2^{945453505354549} is an apocalyptic number.

It is an amenable number.

945453505354549 is a deficient number, since it is larger than the sum of its proper divisors (1).

945453505354549 is an equidigital number, since it uses as much as digits as its factorization.

945453505354549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916000000, while the sum is 70.

It can be divided in two parts, 94545350 and 5354549, that added together give a palindrome (99899899).

The spelling of 945453505354549 in words is "nine hundred forty-five trillion, four hundred fifty-three billion, five hundred five million, three hundred fifty-four thousand, five hundred forty-nine".