6479931000 has 128 divisors (see below), whose sum is σ = 21281644800. Its totient is φ = 1637020800.

The previous prime is 6479930999. The next prime is 6479931043. The reversal of 6479931000 is 1399746.

It is a super-2 number, since 2×6479931000² = 83979011529522000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6479931000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 159 + ... + 113841.

It is an arithmetic number, because the mean of its divisors is an integer number (166262850).

Almost surely, 2^6479931000 is an apocalyptic number.

6479931000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6479931000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10640822400).

6479931000 is an abundant number, since it is smaller than the sum of its proper divisors (14801713800).

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

6479931000 is a wasteful number, since it uses less digits than its factorization.

6479931000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113726 (or 113712 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 6479931000 is about 80498.0186091558. The cubic root of 6479931000 is about 1864.3328862944.

The spelling of 6479931000 in words is "six billion, four hundred seventy-nine million, nine hundred thirty-one thousand".