6506631783 has 12 divisors (see below), whose sum is σ = 9440616640. Its totient is φ = 4318301376.

The previous prime is 6506631751. The next prime is 6506631823. The reversal of 6506631783 is 3871366056.

6506631783 is a `hidden beast` number, since 6 + 5 + 0 + 6 + 631 + 7 + 8 + 3 = 666.

It is not a de Polignac number, because 6506631783 - 2⁵ = 6506631751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6506631683) 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 11 ways as a sum of consecutive naturals, for example, 1618978 + ... + 1622991.

Almost surely, 2^6506631783 is an apocalyptic number.

6506631783 is a deficient number, since it is larger than the sum of its proper divisors (2933984857).

6506631783 is a wasteful number, since it uses less digits than its factorization.

6506631783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242198 (or 3242195 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 6506631783 is about 80663.6955699403. The cubic root of 6506631783 is about 1866.8900602151.

The spelling of 6506631783 in words is "six billion, five hundred six million, six hundred thirty-one thousand, seven hundred eighty-three".