6438880461 has 16 divisors (see below), whose sum is σ = 9252883584. Its totient is φ = 3959254464.

The previous prime is 6438880403. The next prime is 6438880463. The reversal of 6438880461 is 1640888346.

It is not a de Polignac number, because 6438880461 - 2⁷ = 6438880333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6438880461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6438880463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14841 + ... + 114446.

It is an arithmetic number, because the mean of its divisors is an integer number (578305224).

Almost surely, 2^6438880461 is an apocalyptic number.

It is an amenable number.

6438880461 is a deficient number, since it is larger than the sum of its proper divisors (2814003123).

6438880461 is a wasteful number, since it uses less digits than its factorization.

6438880461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130580.

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 6438880461 is about 80242.6349330579. The cubic root of 6438880461 is about 1860.3876770247.

The spelling of 6438880461 in words is "six billion, four hundred thirty-eight million, eight hundred eighty thousand, four hundred sixty-one".