342664466257 has 2 divisors, whose sum is σ = 342664466258. Its totient is φ = 342664466256.

The previous prime is 342664466239. The next prime is 342664466281. The reversal of 342664466257 is 752664466243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283374164241 + 59290302016 = 532329^2 + 243496^2 .

It is a cyclic number.

It is not a de Polignac number, because 342664466257 - 2¹¹ = 342664464209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 342664466198 and 342664466207.

It is not a weakly prime, because it can be changed into another prime (342664466237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171332233128 + 171332233129.

It is an arithmetic number, because the mean of its divisors is an integer number (171332233129).

Almost surely, 2^342664466257 is an apocalyptic number.

It is an amenable number.

342664466257 is a deficient number, since it is larger than the sum of its proper divisors (1).

342664466257 is an equidigital number, since it uses as much as digits as its factorization.

342664466257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 55.

The spelling of 342664466257 in words is "three hundred forty-two billion, six hundred sixty-four million, four hundred sixty-six thousand, two hundred fifty-seven".