6419909742 has 48 divisors (see below), whose sum is σ = 13516484592. Its totient is φ = 2032208640.

The previous prime is 6419909731. The next prime is 6419909827. The reversal of 6419909742 is 2479099146.

It is a happy number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 297378 + ... + 318234.

It is an arithmetic number, because the mean of its divisors is an integer number (281593429).

Almost surely, 2^6419909742 is an apocalyptic number.

6419909742 is an abundant number, since it is smaller than the sum of its proper divisors (7096574850).

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

6419909742 is a wasteful number, since it uses less digits than its factorization.

6419909742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20981 (or 20952 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 6419909742 is about 80124.3392609262. The cubic root of 6419909742 is about 1858.5588078718.

The spelling of 6419909742 in words is "six billion, four hundred nineteen million, nine hundred nine thousand, seven hundred forty-two".