2705438433157 has 2 divisors, whose sum is σ = 2705438433158. Its totient is φ = 2705438433156.

The previous prime is 2705438433007. The next prime is 2705438433163. The reversal of 2705438433157 is 7513348345072.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2612648744161 + 92789688996 = 1616369^2 + 304614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2705438433157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2705438463157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352719216578 + 1352719216579.

It is an arithmetic number, because the mean of its divisors is an integer number (1352719216579).

Almost surely, 2^{2705438433157} is an apocalyptic number.

It is an amenable number.

2705438433157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705438433157 is an equidigital number, since it uses as much as digits as its factorization.

2705438433157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 2705438433157 in words is "two trillion, seven hundred five billion, four hundred thirty-eight million, four hundred thirty-three thousand, one hundred fifty-seven".