945273389789 has 2 divisors, whose sum is σ = 945273389790. Its totient is φ = 945273389788.

The previous prime is 945273389729. The next prime is 945273389791. The reversal of 945273389789 is 987983372549.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 845448987289 + 99824402500 = 919483^2 + 315950^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-945273389789 is a prime.

Together with 945273389791, 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 (945273389729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472636694894 + 472636694895.

It is an arithmetic number, because the mean of its divisors is an integer number (472636694895).

Almost surely, 2^945273389789 is an apocalyptic number.

It is an amenable number.

945273389789 is a deficient number, since it is larger than the sum of its proper divisors (1).

945273389789 is an equidigital number, since it uses as much as digits as its factorization.

945273389789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 823011840, while the sum is 74.

The spelling of 945273389789 in words is "nine hundred forty-five billion, two hundred seventy-three million, three hundred eighty-nine thousand, seven hundred eighty-nine".