6490231720 has 64 divisors (see below), whose sum is σ = 16854480000. Its totient is φ = 2203180800.

The previous prime is 6490231711. The next prime is 6490231733. The reversal of 6490231720 is 271320946.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86470 + ... + 143029.

It is an arithmetic number, because the mean of its divisors is an integer number (263351250).

Almost surely, 2^6490231720 is an apocalyptic number.

It is an amenable number.

6490231720 is an abundant number, since it is smaller than the sum of its proper divisors (10364248280).

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

6490231720 is a wasteful number, since it uses less digits than its factorization.

6490231720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229618 (or 229614 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 6490231720 is about 80561.9744048022. The cubic root of 6490231720 is about 1865.3202324180.

The spelling of 6490231720 in words is "six billion, four hundred ninety million, two hundred thirty-one thousand, seven hundred twenty".