6619920594 has 16 divisors (see below), whose sum is σ = 15131247168. Its totient is φ = 1891405872.

The previous prime is 6619920529. The next prime is 6619920599. The reversal of 6619920594 is 4950299166.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6619920599) 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, 78808537 + ... + 78808620.

It is an arithmetic number, because the mean of its divisors is an integer number (945702948).

Almost surely, 2^6619920594 is an apocalyptic number.

6619920594 is an abundant number, since it is smaller than the sum of its proper divisors (8511326574).

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

6619920594 is a wasteful number, since it uses less digits than its factorization.

6619920594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157617169.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 6619920594 is about 81362.8944544133. The cubic root of 6619920594 is about 1877.6627619249.

The spelling of 6619920594 in words is "six billion, six hundred nineteen million, nine hundred twenty thousand, five hundred ninety-four".