243297634607 has 2 divisors, whose sum is σ = 243297634608. Its totient is φ = 243297634606.

The previous prime is 243297634549. The next prime is 243297634627. The reversal of 243297634607 is 706436792342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243297634607 - 2³² = 239002667311 is a prime.

It is a super-2 number, since 2×243297634607² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243297634627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121648817303 + 121648817304.

It is an arithmetic number, because the mean of its divisors is an integer number (121648817304).

Almost surely, 2^243297634607 is an apocalyptic number.

243297634607 is a deficient number, since it is larger than the sum of its proper divisors (1).

243297634607 is an equidigital number, since it uses as much as digits as its factorization.

243297634607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9144576, while the sum is 53.

The spelling of 243297634607 in words is "two hundred forty-three billion, two hundred ninety-seven million, six hundred thirty-four thousand, six hundred seven".