7445665447 has 8 divisors (see below), whose sum is σ = 8125626240. Its totient is φ = 6766218360.

The previous prime is 7445665433. The next prime is 7445665453.

7445665447 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7445665447 - 2¹⁵ = 7445632679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7445665394 and 7445665403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7445065447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97797 + ... + 156382.

It is an arithmetic number, because the mean of its divisors is an integer number (1015703280).

Almost surely, 2^7445665447 is an apocalyptic number.

7445665447 is a deficient number, since it is larger than the sum of its proper divisors (679960793).

7445665447 is a wasteful number, since it uses less digits than its factorization.

7445665447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256853.

The product of its digits is 11289600, while the sum is 52.

The square root of 7445665447 is about 86288.2694634676. The cubic root of 7445665447 is about 1952.6954131661.

The spelling of 7445665447 in words is "seven billion, four hundred forty-five million, six hundred sixty-five thousand, four hundred forty-seven".