6444051630 has 16 divisors (see below), whose sum is σ = 15465723984. Its totient is φ = 1718413760.

The previous prime is 6444051577. The next prime is 6444051697. The reversal of 6444051630 is 361504446.

It is a junction number, because it is equal to n+sod(n) for n = 6444051591 and 6444051600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107400831 + ... + 107400890.

It is an arithmetic number, because the mean of its divisors is an integer number (966607749).

Almost surely, 2^6444051630 is an apocalyptic number.

6444051630 is an abundant number, since it is smaller than the sum of its proper divisors (9021672354).

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

6444051630 is a wasteful number, since it uses less digits than its factorization.

6444051630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214801731.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 6444051630 is about 80274.8505448624. The cubic root of 6444051630 is about 1860.8855795645.

The spelling of 6444051630 in words is "six billion, four hundred forty-four million, fifty-one thousand, six hundred thirty".