84343261346401 has 2 divisors, whose sum is σ = 84343261346402. Its totient is φ = 84343261346400.

The previous prime is 84343261346371. The next prime is 84343261346459. The reversal of 84343261346401 is 10464316234348.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83955071290000 + 388190056401 = 9162700^2 + 623049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84343261346401 is a prime.

It is a super-2 number, since 2×84343261346401² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (84343261349401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42171630673200 + 42171630673201.

It is an arithmetic number, because the mean of its divisors is an integer number (42171630673201).

Almost surely, 2^{84343261346401} is an apocalyptic number.

It is an amenable number.

84343261346401 is a deficient number, since it is larger than the sum of its proper divisors (1).

84343261346401 is an equidigital number, since it uses as much as digits as its factorization.

84343261346401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 84343261346401 in words is "eighty-four trillion, three hundred forty-three billion, two hundred sixty-one million, three hundred forty-six thousand, four hundred one".