6416942686 has 48 divisors (see below), whose sum is σ = 12335959152. Its totient is φ = 2475312000.

The previous prime is 6416942669. The next prime is 6416942731. The reversal of 6416942686 is 6862496146.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79410 + ... + 138346.

It is an arithmetic number, because the mean of its divisors is an integer number (256999149).

Almost surely, 2^6416942686 is an apocalyptic number.

6416942686 is a deficient number, since it is larger than the sum of its proper divisors (5919016466).

6416942686 is a wasteful number, since it uses less digits than its factorization.

6416942686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59065 (or 59058 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 6416942686 is about 80105.8217984186. The cubic root of 6416942686 is about 1858.2724436273.

The spelling of 6416942686 in words is "six billion, four hundred sixteen million, nine hundred forty-two thousand, six hundred eighty-six".