6444168694 has 16 divisors (see below), whose sum is σ = 9702188496. Its totient is φ = 3210127200.

The previous prime is 6444168691. The next prime is 6444168697. The reversal of 6444168694 is 4968614446.

It is an interprime number because it is at equal distance from previous prime (6444168691) and next prime (6444168697).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444168691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678144 + ... + 687580.

It is an arithmetic number, because the mean of its divisors is an integer number (606386781).

Almost surely, 2^6444168694 is an apocalyptic number.

6444168694 is a deficient number, since it is larger than the sum of its proper divisors (3258019802).

6444168694 is a wasteful number, since it uses less digits than its factorization.

6444168694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10671.

The product of its digits is 3981312, while the sum is 52.

The square root of 6444168694 is about 80275.5796864775. The cubic root of 6444168694 is about 1860.8968479095.

The spelling of 6444168694 in words is "six billion, four hundred forty-four million, one hundred sixty-eight thousand, six hundred ninety-four".