342401463359981 has 2 divisors, whose sum is σ = 342401463359982. Its totient is φ = 342401463359980.

The previous prime is 342401463359947. The next prime is 342401463360041. The reversal of 342401463359981 is 189953364104243.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340060670458756 + 2340792901225 = 18440734^2 + 1529965^2 .

It is an emirp because it is prime and its reverse (189953364104243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342401463359981 - 2²² = 342401459165677 is a prime.

It is a super-2 number, since 2×342401463359981² (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 (342401465359981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171200731679990 + 171200731679991.

It is an arithmetic number, because the mean of its divisors is an integer number (171200731679991).

Almost surely, 2^{342401463359981} is an apocalyptic number.

It is an amenable number.

342401463359981 is a deficient number, since it is larger than the sum of its proper divisors (1).

342401463359981 is an equidigital number, since it uses as much as digits as its factorization.

342401463359981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 62.

The spelling of 342401463359981 in words is "three hundred forty-two trillion, four hundred one billion, four hundred sixty-three million, three hundred fifty-nine thousand, nine hundred eighty-one".