6477864549 has 16 divisors (see below), whose sum is σ = 9363984000. Its totient is φ = 3959620416.

The previous prime is 6477864479. The next prime is 6477864551. The reversal of 6477864549 is 9454687746.

It is not a de Polignac number, because 6477864549 - 2⁹ = 6477864037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6477864492 and 6477864501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6477864149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551569 + ... + 563190.

It is an arithmetic number, because the mean of its divisors is an integer number (585249000).

Almost surely, 2^6477864549 is an apocalyptic number.

It is an amenable number.

6477864549 is a deficient number, since it is larger than the sum of its proper divisors (2886119451).

6477864549 is a wasteful number, since it uses less digits than its factorization.

6477864549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114924.

The product of its digits is 40642560, while the sum is 60.

The square root of 6477864549 is about 80485.1821703846. The cubic root of 6477864549 is about 1864.1346865422.

The spelling of 6477864549 in words is "six billion, four hundred seventy-seven million, eight hundred sixty-four thousand, five hundred forty-nine".