345455523542473 has 2 divisors, whose sum is σ = 345455523542474. Its totient is φ = 345455523542472.

The previous prime is 345455523542419. The next prime is 345455523542561. The reversal of 345455523542473 is 374245325554543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244160719163449 + 101294804379024 = 15625643^2 + 10064532^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-345455523542473 is a prime.

It is not a weakly prime, because it can be changed into another prime (345455523542273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172727761771236 + 172727761771237.

It is an arithmetic number, because the mean of its divisors is an integer number (172727761771237).

Almost surely, 2^{345455523542473} is an apocalyptic number.

It is an amenable number.

345455523542473 is a deficient number, since it is larger than the sum of its proper divisors (1).

345455523542473 is an equidigital number, since it uses as much as digits as its factorization.

345455523542473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800000, while the sum is 61.

The spelling of 345455523542473 in words is "three hundred forty-five trillion, four hundred fifty-five billion, five hundred twenty-three million, five hundred forty-two thousand, four hundred seventy-three".