342405626504261 has 2 divisors, whose sum is σ = 342405626504262. Its totient is φ = 342405626504260.

The previous prime is 342405626504213. The next prime is 342405626504321. The reversal of 342405626504261 is 162405626504243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 331552021444900 + 10853605059361 = 18208570^2 + 3294481^2 .

It is a cyclic number.

It is not a de Polignac number, because 342405626504261 - 2⁶ = 342405626504197 is a prime.

It is a super-2 number, since 2×342405626504261² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342405626506261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171202813252130 + 171202813252131.

It is an arithmetic number, because the mean of its divisors is an integer number (171202813252131).

Almost surely, 2^{342405626504261} is an apocalyptic number.

It is an amenable number.

342405626504261 is a deficient number, since it is larger than the sum of its proper divisors (1).

342405626504261 is an equidigital number, since it uses as much as digits as its factorization.

342405626504261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8294400, while the sum is 50.

The spelling of 342405626504261 in words is "three hundred forty-two trillion, four hundred five billion, six hundred twenty-six million, five hundred four thousand, two hundred sixty-one".