2239435563173 has 2 divisors, whose sum is σ = 2239435563174. Its totient is φ = 2239435563172.

The previous prime is 2239435563161. The next prime is 2239435563367. The reversal of 2239435563173 is 3713655349322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1860149560129 + 379286003044 = 1363873^2 + 615862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2239435563173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2239435563143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119717781586 + 1119717781587.

It is an arithmetic number, because the mean of its divisors is an integer number (1119717781587).

Almost surely, 2^{2239435563173} is an apocalyptic number.

It is an amenable number.

2239435563173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2239435563173 is an equidigital number, since it uses as much as digits as its factorization.

2239435563173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12247200, while the sum is 53.

The spelling of 2239435563173 in words is "two trillion, two hundred thirty-nine billion, four hundred thirty-five million, five hundred sixty-three thousand, one hundred seventy-three".