422434173257 has 2 divisors, whose sum is σ = 422434173258. Its totient is φ = 422434173256.

The previous prime is 422434173233. The next prime is 422434173313. The reversal of 422434173257 is 752371434224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 420706607161 + 1727566096 = 648619^2 + 41564^2 .

It is a cyclic number.

It is not a de Polignac number, because 422434173257 - 2⁶ = 422434173193 is a prime.

It is not a weakly prime, because it can be changed into another prime (422434173857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211217086628 + 211217086629.

It is an arithmetic number, because the mean of its divisors is an integer number (211217086629).

Almost surely, 2^422434173257 is an apocalyptic number.

It is an amenable number.

422434173257 is a deficient number, since it is larger than the sum of its proper divisors (1).

422434173257 is an equidigital number, since it uses as much as digits as its factorization.

422434173257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1128960, while the sum is 44.

The spelling of 422434173257 in words is "four hundred twenty-two billion, four hundred thirty-four million, one hundred seventy-three thousand, two hundred fifty-seven".