7445522255448 has 64 divisors (see below), whose sum is σ = 19813631184000. Its totient is φ = 2324799366912.

The previous prime is 7445522255447. The next prime is 7445522255497. The reversal of 7445522255448 is 8445522255447.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7445522255447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91689190 + ... + 91770357.

It is an arithmetic number, because the mean of its divisors is an integer number (309587987250).

Almost surely, 2^{7445522255448} is an apocalyptic number.

It is an amenable number.

7445522255448 is an abundant number, since it is smaller than the sum of its proper divisors (12368108928552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7445522255448 is a wasteful number, since it uses less digits than its factorization.

7445522255448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183459664 (or 183459660 counting only the distinct ones).

The product of its digits is 71680000, while the sum is 57.

Subtracting 7445522255448 from its reverse (8445522255447), we obtain a palindrome (999999999999).

The spelling of 7445522255448 in words is "seven trillion, four hundred forty-five billion, five hundred twenty-two million, two hundred fifty-five thousand, four hundred forty-eight".