8244408745 has 4 divisors (see below), whose sum is σ = 9893290500. Its totient is φ = 6595526992.

The previous prime is 8244408713. The next prime is 8244408751. The reversal of 8244408745 is 5478044428.

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 5425648281 + 2818760464 = 73659^2 + 53092^2 .

It is a cyclic number.

It is not a de Polignac number, because 8244408745 - 2⁵ = 8244408713 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8244408695 and 8244408704.

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, 824440870 + ... + 824440879.

It is an arithmetic number, because the mean of its divisors is an integer number (2473322625).

Almost surely, 2^8244408745 is an apocalyptic number.

It is an amenable number.

8244408745 is a deficient number, since it is larger than the sum of its proper divisors (1648881755).

8244408745 is a wasteful number, since it uses less digits than its factorization.

8244408745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648881754.

The product of its (nonzero) digits is 1146880, while the sum is 46.

The square root of 8244408745 is about 90798.7265604535. The cubic root of 8244408745 is about 2020.1634303121.

The spelling of 8244408745 in words is "eight billion, two hundred forty-four million, four hundred eight thousand, seven hundred forty-five".