6506743770 has 40 divisors (see below), whose sum is σ = 17495913204. Its totient is φ = 1735131456.

The previous prime is 6506743757. The next prime is 6506743807. The reversal of 6506743770 is 773476056.

6506743770 is a `hidden beast` number, since 6 + 506 + 74 + 3 + 7 + 70 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5461062201 + 1045681569 = 73899^2 + 32337^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 4015699 + ... + 4017318.

Almost surely, 2^6506743770 is an apocalyptic number.

6506743770 is an abundant number, since it is smaller than the sum of its proper divisors (10989169434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6506743770 is a wasteful number, since it uses less digits than its factorization.

6506743770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8033036 (or 8033027 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 45.

The square root of 6506743770 is about 80664.3897268181. The cubic root of 6506743770 is about 1866.9007706320.

The spelling of 6506743770 in words is "six billion, five hundred six million, seven hundred forty-three thousand, seven hundred seventy".