6448374722 has 4 divisors (see below), whose sum is σ = 9672562086. Its totient is φ = 3224187360.

The previous prime is 6448374683. The next prime is 6448374727. The reversal of 6448374722 is 2274738446.

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 only one way, i.e., 4051195201 + 2397179521 = 63649^2 + 48961^2 .

It is not an unprimeable number, because it can be changed into a prime (6448374727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1612093679 + ... + 1612093682.

Almost surely, 2^6448374722 is an apocalyptic number.

6448374722 is a deficient number, since it is larger than the sum of its proper divisors (3224187364).

6448374722 is a wasteful number, since it uses less digits than its factorization.

6448374722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224187363.

The product of its digits is 1806336, while the sum is 47.

The square root of 6448374722 is about 80301.7728446888. The cubic root of 6448374722 is about 1861.3016211951.

The spelling of 6448374722 in words is "six billion, four hundred forty-eight million, three hundred seventy-four thousand, seven hundred twenty-two".