2449475709 has 4 divisors (see below), whose sum is σ = 3265967616. Its totient is φ = 1632983804.

The previous prime is 2449475657. The next prime is 2449475723. The reversal of 2449475709 is 9075749442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2449475709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449475729) 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, 408245949 + ... + 408245954.

It is an arithmetic number, because the mean of its divisors is an integer number (816491904).

Almost surely, 2^2449475709 is an apocalyptic number.

It is an amenable number.

2449475709 is a deficient number, since it is larger than the sum of its proper divisors (816491907).

2449475709 is an equidigital number, since it uses as much as digits as its factorization.

2449475709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816491906.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 2449475709 is about 49492.1782608121. The cubic root of 2449475709 is about 1348.0035802295.

The spelling of 2449475709 in words is "two billion, four hundred forty-nine million, four hundred seventy-five thousand, seven hundred nine".