2805648723373 has 2 divisors, whose sum is σ = 2805648723374. Its totient is φ = 2805648723372.

The previous prime is 2805648723313. The next prime is 2805648723379. The reversal of 2805648723373 is 3733278465082.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1918770728809 + 886877994564 = 1385197^2 + 941742^2 .

It is a cyclic number.

It is not a de Polignac number, because 2805648723373 - 2⁹ = 2805648722861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2805648723379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402824361686 + 1402824361687.

It is an arithmetic number, because the mean of its divisors is an integer number (1402824361687).

Almost surely, 2^{2805648723373} is an apocalyptic number.

It is an amenable number.

2805648723373 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805648723373 is an equidigital number, since it uses as much as digits as its factorization.

2805648723373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 58.

The spelling of 2805648723373 in words is "two trillion, eight hundred five billion, six hundred forty-eight million, seven hundred twenty-three thousand, three hundred seventy-three".