6644141742 has 32 divisors (see below), whose sum is σ = 15357254400. Its totient is φ = 1876995648.

The previous prime is 6644141741. The next prime is 6644141747. The reversal of 6644141742 is 2471414466.

It is a self number, because there is not a number n which added to its sum of digits gives 6644141742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6644141741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 884992 + ... + 892467.

It is an arithmetic number, because the mean of its divisors is an integer number (479914200).

Almost surely, 2^6644141742 is an apocalyptic number.

6644141742 is an abundant number, since it is smaller than the sum of its proper divisors (8713112658).

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

6644141742 is a wasteful number, since it uses less digits than its factorization.

6644141742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777560.

The product of its digits is 129024, while the sum is 39.

The square root of 6644141742 is about 81511.6049529145. The cubic root of 6644141742 is about 1879.9499894272.

The spelling of 6644141742 in words is "six billion, six hundred forty-four million, one hundred forty-one thousand, seven hundred forty-two".