7445665394 has 8 divisors (see below), whose sum is σ = 11756313840. Its totient is φ = 3526894116.

The previous prime is 7445665373. The next prime is 7445665397. The reversal of 7445665394 is 4935665447.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7445665397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97969244 + ... + 97969319.

It is an arithmetic number, because the mean of its divisors is an integer number (1469539230).

Almost surely, 2^7445665394 is an apocalyptic number.

7445665394 is a deficient number, since it is larger than the sum of its proper divisors (4310648446).

7445665394 is a wasteful number, since it uses less digits than its factorization.

7445665394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195938584.

The product of its digits is 10886400, while the sum is 53.

The square root of 7445665394 is about 86288.2691563575. The cubic root of 7445665394 is about 1952.6954085328.

Adding to 7445665394 its sum of digits (53), we get a palindrome (7445665447).

The spelling of 7445665394 in words is "seven billion, four hundred forty-five million, six hundred sixty-five thousand, three hundred ninety-four".