434370757321 has 2 divisors, whose sum is σ = 434370757322. Its totient is φ = 434370757320.

The previous prime is 434370757319. The next prime is 434370757439. The reversal of 434370757321 is 123757073434.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274014559296 + 160356198025 = 523464^2 + 400445^2 .

It is a cyclic number.

It is not a de Polignac number, because 434370757321 - 2¹ = 434370757319 is a prime.

Together with 434370757319, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (434370757721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217185378660 + 217185378661.

It is an arithmetic number, because the mean of its divisors is an integer number (217185378661).

Almost surely, 2^434370757321 is an apocalyptic number.

It is an amenable number.

434370757321 is a deficient number, since it is larger than the sum of its proper divisors (1).

434370757321 is an equidigital number, since it uses as much as digits as its factorization.

434370757321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1481760, while the sum is 46.

The spelling of 434370757321 in words is "four hundred thirty-four billion, three hundred seventy million, seven hundred fifty-seven thousand, three hundred twenty-one".