6485786773 has 4 divisors (see below), whose sum is σ = 6867303660. Its totient is φ = 6104269888.

The previous prime is 6485786771. The next prime is 6485786803. The reversal of 6485786773 is 3776875846.

It is a happy number.

6485786773 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4243480164 + 2242306609 = 65142^2 + 47353^2 .

It is a cyclic number.

It is not a de Polignac number, because 6485786773 - 2¹ = 6485786771 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 (6485786771) 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, 190758418 + ... + 190758451.

It is an arithmetic number, because the mean of its divisors is an integer number (1716825915).

Almost surely, 2^6485786773 is an apocalyptic number.

It is an amenable number.

6485786773 is a deficient number, since it is larger than the sum of its proper divisors (381516887).

6485786773 is a wasteful number, since it uses less digits than its factorization.

6485786773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381516886.

The product of its digits is 47416320, while the sum is 61.

The square root of 6485786773 is about 80534.3825518021. The cubic root of 6485786773 is about 1864.8943029366.

The spelling of 6485786773 in words is "six billion, four hundred eighty-five million, seven hundred eighty-six thousand, seven hundred seventy-three".