2973245945909 has 2 divisors, whose sum is σ = 2973245945910. Its totient is φ = 2973245945908.

The previous prime is 2973245945867. The next prime is 2973245945911. The reversal of 2973245945909 is 9095495423792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1501367441809 + 1471878504100 = 1225303^2 + 1213210^2 .

It is a cyclic number.

It is not a de Polignac number, because 2973245945909 - 2¹⁶ = 2973245880373 is a prime.

Together with 2973245945911, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2973245945009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1486622972954 + 1486622972955.

It is an arithmetic number, because the mean of its divisors is an integer number (1486622972955).

Almost surely, 2^{2973245945909} is an apocalyptic number.

It is an amenable number.

2973245945909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2973245945909 is an equidigital number, since it uses as much as digits as its factorization.

2973245945909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 220449600, while the sum is 68.

The spelling of 2973245945909 in words is "two trillion, nine hundred seventy-three billion, two hundred forty-five million, nine hundred forty-five thousand, nine hundred nine".