6466488938 has 48 divisors (see below), whose sum is σ = 12269537280. Its totient is φ = 2533283424.

The previous prime is 6466488923. The next prime is 6466488961. The reversal of 6466488938 is 8398846646.

It is a Curzon 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, 106583 + ... + 155861.

It is an arithmetic number, because the mean of its divisors is an integer number (255615360).

Almost surely, 2^6466488938 is an apocalyptic number.

6466488938 is a deficient number, since it is larger than the sum of its proper divisors (5803048342).

6466488938 is a wasteful number, since it uses less digits than its factorization.

6466488938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49411 (or 49404 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 62.

The square root of 6466488938 is about 80414.4821409676. The cubic root of 6466488938 is about 1863.0428608888.

The spelling of 6466488938 in words is "six billion, four hundred sixty-six million, four hundred eighty-eight thousand, nine hundred thirty-eight".