6930580644 has 144 divisors (see below), whose sum is σ = 19618743872. Its totient is φ = 2126673792.

The previous prime is 6930580597. The next prime is 6930580663. The reversal of 6930580644 is 4460850396.

6930580644 is a `hidden beast` number, since 6 + 9 + 3 + 0 + 580 + 64 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 6930580644.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8124522 + ... + 8125374.

Almost surely, 2^6930580644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6930580644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9809371936).

6930580644 is an abundant number, since it is smaller than the sum of its proper divisors (12688163228).

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

6930580644 is a wasteful number, since it uses less digits than its factorization.

6930580644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 6930580644 is about 83250.1089729017. The cubic root of 6930580644 is about 1906.5866179221.

The spelling of 6930580644 in words is "six billion, nine hundred thirty million, five hundred eighty thousand, six hundred forty-four".