973909000549 has 2 divisors, whose sum is σ = 973909000550. Its totient is φ = 973909000548.

The previous prime is 973909000543. The next prime is 973909000553. The reversal of 973909000549 is 945000909379.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958069016100 + 15839984449 = 978810^2 + 125857^2 .

It is a cyclic number.

It is not a de Polignac number, because 973909000549 - 2³ = 973909000541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 973909000549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (973909000541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 486954500274 + 486954500275.

It is an arithmetic number, because the mean of its divisors is an integer number (486954500275).

Almost surely, 2^973909000549 is an apocalyptic number.

It is an amenable number.

973909000549 is a deficient number, since it is larger than the sum of its proper divisors (1).

973909000549 is an equidigital number, since it uses as much as digits as its factorization.

973909000549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2755620, while the sum is 55.

The spelling of 973909000549 in words is "nine hundred seventy-three billion, nine hundred nine million, five hundred forty-nine", and thus it is an aban number.