7445665453 has 2 divisors, whose sum is σ = 7445665454. Its totient is φ = 7445665452.

The previous prime is 7445665433. The next prime is 7445665459. The reversal of 7445665453 is 3545665447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5787709929 + 1657955524 = 76077^2 + 40718^2 .

It is a cyclic number.

It is not a de Polignac number, because 7445665453 - 2¹⁷ = 7445534381 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7445665397 and 7445665406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7445665459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3722832726 + 3722832727.

It is an arithmetic number, because the mean of its divisors is an integer number (3722832727).

Almost surely, 2^7445665453 is an apocalyptic number.

It is an amenable number.

7445665453 is a deficient number, since it is larger than the sum of its proper divisors (1).

7445665453 is an equidigital number, since it uses as much as digits as its factorization.

7445665453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048000, while the sum is 49.

The square root of 7445665453 is about 86288.2694982348. The cubic root of 7445665453 is about 1952.6954136906.

The spelling of 7445665453 in words is "seven billion, four hundred forty-five million, six hundred sixty-five thousand, four hundred fifty-three".