425453340073 has 2 divisors, whose sum is σ = 425453340074. Its totient is φ = 425453340072.

The previous prime is 425453340049. The next prime is 425453340079. The reversal of 425453340073 is 370043354524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 410973309184 + 14480030889 = 641072^2 + 120333^2 .

It is a cyclic number.

It is not a de Polignac number, because 425453340073 - 2¹³ = 425453331881 is a prime.

It is not a weakly prime, because it can be changed into another prime (425453340079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212726670036 + 212726670037.

It is an arithmetic number, because the mean of its divisors is an integer number (212726670037).

Almost surely, 2^425453340073 is an apocalyptic number.

It is an amenable number.

425453340073 is a deficient number, since it is larger than the sum of its proper divisors (1).

425453340073 is an equidigital number, since it uses as much as digits as its factorization.

425453340073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 40.

Adding to 425453340073 its reverse (370043354524), we get a palindrome (795496694597).

The spelling of 425453340073 in words is "four hundred twenty-five billion, four hundred fifty-three million, three hundred forty thousand, seventy-three".