545948945957 has 2 divisors, whose sum is σ = 545948945958. Its totient is φ = 545948945956.

The previous prime is 545948945933. The next prime is 545948945989. The reversal of 545948945957 is 759549849545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 536225211076 + 9723734881 = 732274^2 + 98609^2 .

It is a cyclic number.

It is not a de Polignac number, because 545948945957 - 2⁸ = 545948945701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545948945657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272974472978 + 272974472979.

It is an arithmetic number, because the mean of its divisors is an integer number (272974472979).

Almost surely, 2^545948945957 is an apocalyptic number.

It is an amenable number.

545948945957 is a deficient number, since it is larger than the sum of its proper divisors (1).

545948945957 is an equidigital number, since it uses as much as digits as its factorization.

545948945957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960000, while the sum is 74.

The spelling of 545948945957 in words is "five hundred forty-five billion, nine hundred forty-eight million, nine hundred forty-five thousand, nine hundred fifty-seven".