6389747020 has 24 divisors (see below), whose sum is σ = 13427412768. Its totient is φ = 2554195200.

The previous prime is 6389746991. The next prime is 6389747029. The reversal of 6389747020 is 207479836.

It is a super-3 number, since 3×6389747020³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6389747029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75501 + ... + 135940.

It is an arithmetic number, because the mean of its divisors is an integer number (559475532).

Almost surely, 2^6389747020 is an apocalyptic number.

It is an amenable number.

6389747020 is an abundant number, since it is smaller than the sum of its proper divisors (7037665748).

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

6389747020 is a wasteful number, since it uses less digits than its factorization.

6389747020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212961 (or 212959 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 6389747020 is about 79935.8931894803. The cubic root of 6389747020 is about 1855.6435427432.

The spelling of 6389747020 in words is "six billion, three hundred eighty-nine million, seven hundred forty-seven thousand, twenty".