6391142144 has 36 divisors (see below), whose sum is σ = 12782938896. Its totient is φ = 3189153792.

The previous prime is 6391142123. The next prime is 6391142167. The reversal of 6391142144 is 4412411936.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103952 + ... + 153584.

It is an arithmetic number, because the mean of its divisors is an integer number (355081636).

Almost surely, 2^6391142144 is an apocalyptic number.

6391142144 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6391142144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6391469448).

6391142144 is an abundant number, since it is smaller than the sum of its proper divisors (6391796752).

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

6391142144 is an equidigital number, since it uses as much as digits as its factorization.

6391142144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50152 (or 50138 counting only the distinct ones).

The product of its digits is 20736, while the sum is 35.

The square root of 6391142144 is about 79944.6192310652. The cubic root of 6391142144 is about 1855.7785853587.

The spelling of 6391142144 in words is "six billion, three hundred ninety-one million, one hundred forty-two thousand, one hundred forty-four".