342643834320457 has 2 divisors, whose sum is σ = 342643834320458. Its totient is φ = 342643834320456.

The previous prime is 342643834320443. The next prime is 342643834320503. The reversal of 342643834320457 is 754023438346243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333539397089721 + 9104437230736 = 18263061^2 + 3017356^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342643834320457 is a prime.

It is not a weakly prime, because it can be changed into another prime (342643834320407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171321917160228 + 171321917160229.

It is an arithmetic number, because the mean of its divisors is an integer number (171321917160229).

Almost surely, 2^{342643834320457} is an apocalyptic number.

It is an amenable number.

342643834320457 is a deficient number, since it is larger than the sum of its proper divisors (1).

342643834320457 is an equidigital number, since it uses as much as digits as its factorization.

342643834320457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139345920, while the sum is 58.

The spelling of 342643834320457 in words is "three hundred forty-two trillion, six hundred forty-three billion, eight hundred thirty-four million, three hundred twenty thousand, four hundred fifty-seven".