6381443930 has 96 divisors (see below), whose sum is σ = 12640665600. Its totient is φ = 2316625920.

The previous prime is 6381443927. The next prime is 6381443989. The reversal of 6381443930 is 393441836.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14212346 + ... + 14212794.

It is an arithmetic number, because the mean of its divisors is an integer number (131673600).

Almost surely, 2^6381443930 is an apocalyptic number.

6381443930 is a deficient number, since it is larger than the sum of its proper divisors (6259221670).

6381443930 is a wasteful number, since it uses less digits than its factorization.

6381443930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 6381443930 is about 79883.9403760230. The cubic root of 6381443930 is about 1854.8394288060.

The spelling of 6381443930 in words is "six billion, three hundred eighty-one million, four hundred forty-three thousand, nine hundred thirty".