7448744845 has 4 divisors (see below), whose sum is σ = 8938493820. Its totient is φ = 5958995872.

The previous prime is 7448744791. The next prime is 7448744923. The reversal of 7448744845 is 5484478447.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 862773129 + 6585971716 = 29373^2 + 81154^2 .

It is a cyclic number.

It is not a de Polignac number, because 7448744845 - 2⁷ = 7448744717 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 744874480 + ... + 744874489.

It is an arithmetic number, because the mean of its divisors is an integer number (2234623455).

Almost surely, 2^7448744845 is an apocalyptic number.

It is an amenable number.

7448744845 is a deficient number, since it is larger than the sum of its proper divisors (1489748975).

7448744845 is a wasteful number, since it uses less digits than its factorization.

7448744845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489748974.

The product of its digits is 16056320, while the sum is 55.

The square root of 7448744845 is about 86306.1112841959. Note that the first 3 decimals coincide. The cubic root of 7448744845 is about 1952.9645763729.

The spelling of 7448744845 in words is "seven billion, four hundred forty-eight million, seven hundred forty-four thousand, eight hundred forty-five".