6441146740 has 96 divisors (see below), whose sum is σ = 15926803200. Its totient is φ = 2142151680.

The previous prime is 6441146713. The next prime is 6441146743. The reversal of 6441146740 is 476411446.

It is a self number, because there is not a number n which added to its sum of digits gives 6441146740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6441146743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1024326 + ... + 1030594.

It is an arithmetic number, because the mean of its divisors is an integer number (165904200).

Almost surely, 2^6441146740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6441146740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7963401600).

6441146740 is an abundant number, since it is smaller than the sum of its proper divisors (9485656460).

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

6441146740 is a wasteful number, since it uses less digits than its factorization.

6441146740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505 (or 6503 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 6441146740 is about 80256.7551051000. The cubic root of 6441146740 is about 1860.6059169810.

It can be divided in two parts, 6441 and 146740, that added together give a triangular number (153181 = T₅₅₃).

The spelling of 6441146740 in words is "six billion, four hundred forty-one million, one hundred forty-six thousand, seven hundred forty".