6485864677 has 4 divisors (see below), whose sum is σ = 6489495936. Its totient is φ = 6482233420.

The previous prime is 6485864669. The next prime is 6485864731. The reversal of 6485864677 is 7764685846.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6485864677 - 2³ = 6485864669 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 (6485864617) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1812949 + ... + 1816522.

It is an arithmetic number, because the mean of its divisors is an integer number (1622373984).

Almost surely, 2^6485864677 is an apocalyptic number.

It is an amenable number.

6485864677 is a deficient number, since it is larger than the sum of its proper divisors (3631259).

6485864677 is a wasteful number, since it uses less digits than its factorization.

6485864677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3631258.

The product of its digits is 54190080, while the sum is 61.

The square root of 6485864677 is about 80534.8662195449. The cubic root of 6485864677 is about 1864.9017696300.

The spelling of 6485864677 in words is "six billion, four hundred eighty-five million, eight hundred sixty-four thousand, six hundred seventy-seven".