6497448788 has 12 divisors (see below), whose sum is σ = 11677847412. Its totient is φ = 3160920960.

The previous prime is 6497448757. The next prime is 6497448799. The reversal of 6497448788 is 8878447946.

It can be written as a sum of positive squares in 2 ways, for example, as 2692779664 + 3804669124 = 51892^2 + 61682^2 .

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, 21950693 + ... + 21950988.

It is an arithmetic number, because the mean of its divisors is an integer number (973153951).

Almost surely, 2^6497448788 is an apocalyptic number.

It is an amenable number.

6497448788 is a deficient number, since it is larger than the sum of its proper divisors (5180398624).

6497448788 is a wasteful number, since it uses less digits than its factorization.

6497448788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43901722 (or 43901720 counting only the distinct ones).

The product of its digits is 86704128, while the sum is 65.

The square root of 6497448788 is about 80606.7539850105. The cubic root of 6497448788 is about 1866.0113816559.

The spelling of 6497448788 in words is "six billion, four hundred ninety-seven million, four hundred forty-eight thousand, seven hundred eighty-eight".