6493466477 has 4 divisors (see below), whose sum is σ = 6497358780. Its totient is φ = 6489574176.

The previous prime is 6493466449. The next prime is 6493466519. The reversal of 6493466477 is 7746643946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5519152681 + 974313796 = 74291^2 + 31214^2 .

It is a cyclic number.

It is not a de Polignac number, because 6493466477 - 2¹⁰ = 6493465453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6493466407) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1943648 + ... + 1946985.

It is an arithmetic number, because the mean of its divisors is an integer number (1624339695).

Almost surely, 2^6493466477 is an apocalyptic number.

It is an amenable number.

6493466477 is a deficient number, since it is larger than the sum of its proper divisors (3892303).

6493466477 is a wasteful number, since it uses less digits than its factorization.

6493466477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3892302.

The product of its digits is 18289152, while the sum is 56.

The square root of 6493466477 is about 80582.0481062625. The cubic root of 6493466477 is about 1865.6300752600.

The spelling of 6493466477 in words is "six billion, four hundred ninety-three million, four hundred sixty-six thousand, four hundred seventy-seven".