6648972526 has 16 divisors (see below), whose sum is σ = 11893814784. Its totient is φ = 2725665624.

The previous prime is 6648972497. The next prime is 6648972529. The reversal of 6648972526 is 6252798466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6648972529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10324170 + ... + 10324813.

It is an arithmetic number, because the mean of its divisors is an integer number (743363424).

Almost surely, 2^6648972526 is an apocalyptic number.

6648972526 is a deficient number, since it is larger than the sum of its proper divisors (5244842258).

6648972526 is a wasteful number, since it uses less digits than its factorization.

6648972526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20649015.

The product of its digits is 8709120, while the sum is 55.

The square root of 6648972526 is about 81541.2320608415. The cubic root of 6648972526 is about 1880.4055000892.

The spelling of 6648972526 in words is "six billion, six hundred forty-eight million, nine hundred seventy-two thousand, five hundred twenty-six".