6497565930 has 128 divisors (see below), whose sum is σ = 18022579200. Its totient is φ = 1664312832.

The previous prime is 6497565911. The next prime is 6497565959. The reversal of 6497565930 is 395657946.

6497565930 is a `hidden beast` number, since 6 + 49 + 7 + 5 + 6 + 593 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 63 ways as a sum of consecutive naturals, for example, 785094 + ... + 793326.

It is an arithmetic number, because the mean of its divisors is an integer number (140801400).

Almost surely, 2^6497565930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6497565930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9011289600).

6497565930 is an abundant number, since it is smaller than the sum of its proper divisors (11525013270).

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

6497565930 is a wasteful number, since it uses less digits than its factorization.

6497565930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8365 (or 8359 counting only the distinct ones).

The product of its (nonzero) digits is 6123600, while the sum is 54.

The square root of 6497565930 is about 80607.4806081917. The cubic root of 6497565930 is about 1866.0225956466.

The spelling of 6497565930 in words is "six billion, four hundred ninety-seven million, five hundred sixty-five thousand, nine hundred thirty".