634465432240271 has 2 divisors, whose sum is σ = 634465432240272. Its totient is φ = 634465432240270.

The previous prime is 634465432240259. The next prime is 634465432240303. The reversal of 634465432240271 is 172042234564436.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-634465432240271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (634465432246271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317232716120135 + 317232716120136.

It is an arithmetic number, because the mean of its divisors is an integer number (317232716120136).

Almost surely, 2^{634465432240271} is an apocalyptic number.

634465432240271 is a deficient number, since it is larger than the sum of its proper divisors (1).

634465432240271 is an equidigital number, since it uses as much as digits as its factorization.

634465432240271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23224320, while the sum is 53.

The spelling of 634465432240271 in words is "six hundred thirty-four trillion, four hundred sixty-five billion, four hundred thirty-two million, two hundred forty thousand, two hundred seventy-one".