7448744853 has 32 divisors (see below), whose sum is σ = 12187036800. Its totient is φ = 4514376240.

The previous prime is 7448744791. The next prime is 7448744923. The reversal of 7448744853 is 3584478447.

7448744853 is a `hidden beast` number, since 74 + 4 + 87 + 448 + 53 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-7448744853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7448744853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7448744053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130758 + ... + 178871.

It is an arithmetic number, because the mean of its divisors is an integer number (380844900).

Almost surely, 2^7448744853 is an apocalyptic number.

It is an amenable number.

7448744853 is a deficient number, since it is larger than the sum of its proper divisors (4738291947).

7448744853 is an equidigital number, since it uses as much as digits as its factorization.

7448744853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309661 (or 309643 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 54.

The square root of 7448744853 is about 86306.1113305425. Note that the first 3 decimals coincide. The cubic root of 7448744853 is about 1952.9645770721.

The spelling of 7448744853 in words is "seven billion, four hundred forty-eight million, seven hundred forty-four thousand, eight hundred fifty-three".