6389759990 has 16 divisors (see below), whose sum is σ = 11872586880. Its totient is φ = 2473455360.

The previous prime is 6389759989. The next prime is 6389760001. The reversal of 6389759990 is 999579836.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10305755 + ... + 10306374.

It is an arithmetic number, because the mean of its divisors is an integer number (742036680).

Almost surely, 2^6389759990 is an apocalyptic number.

6389759990 is a deficient number, since it is larger than the sum of its proper divisors (5482826890).

6389759990 is a wasteful number, since it uses less digits than its factorization.

6389759990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20612167.

The product of its (nonzero) digits is 33067440, while the sum is 65.

The square root of 6389759990 is about 79935.9743169494. The cubic root of 6389759990 is about 1855.6447982796.

The spelling of 6389759990 in words is "six billion, three hundred eighty-nine million, seven hundred fifty-nine thousand, nine hundred ninety".