545345152400473 has 2 divisors, whose sum is σ = 545345152400474. Its totient is φ = 545345152400472.

The previous prime is 545345152400471. The next prime is 545345152400639. The reversal of 545345152400473 is 374004251543545.

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., 544725865245769 + 619287154704 = 23339363^2 + 786948^2 .

It is a cyclic number.

It is not a de Polignac number, because 545345152400473 - 2¹ = 545345152400471 is a prime.

Together with 545345152400471, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 545345152400473.

It is not a weakly prime, because it can be changed into another prime (545345152400471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272672576200236 + 272672576200237.

It is an arithmetic number, because the mean of its divisors is an integer number (272672576200237).

Almost surely, 2^{545345152400473} is an apocalyptic number.

It is an amenable number.

545345152400473 is a deficient number, since it is larger than the sum of its proper divisors (1).

545345152400473 is an equidigital number, since it uses as much as digits as its factorization.

545345152400473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160000, while the sum is 52.

The spelling of 545345152400473 in words is "five hundred forty-five trillion, three hundred forty-five billion, one hundred fifty-two million, four hundred thousand, four hundred seventy-three".