6459930990 has 48 divisors (see below), whose sum is σ = 16813965168. Its totient is φ = 1720787328.

The previous prime is 6459930947. The next prime is 6459931039. The reversal of 6459930990 is 990399546.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46029 + ... + 122631.

It is an arithmetic number, because the mean of its divisors is an integer number (350290941).

Almost surely, 2^6459930990 is an apocalyptic number.

6459930990 is an abundant number, since it is smaller than the sum of its proper divisors (10354034178).

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

6459930990 is a wasteful number, since it uses less digits than its factorization.

6459930990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77553 (or 77550 counting only the distinct ones).

The product of its (nonzero) digits is 2361960, while the sum is 54.

The square root of 6459930990 is about 80373.6958836658. The cubic root of 6459930990 is about 1862.4128502380.

The spelling of 6459930990 in words is "six billion, four hundred fifty-nine million, nine hundred thirty thousand, nine hundred ninety".