6771040040 has 32 divisors (see below), whose sum is σ = 15260584680. Its totient is φ = 2703839232.

The previous prime is 6771040027. The next prime is 6771040097. The reversal of 6771040040 is 400401776.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6143737924 + 627302116 = 78382^2 + 25046^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6771039985 and 6771040012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119009 + ... + 166448.

Almost surely, 2^6771040040 is an apocalyptic number.

It is an amenable number.

6771040040 is an abundant number, since it is smaller than the sum of its proper divisors (8489544640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6771040040 is a wasteful number, since it uses less digits than its factorization.

6771040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286061 (or 286057 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 6771040040 is about 82286.3296058343. The cubic root of 6771040040 is about 1891.8431521662.

The spelling of 6771040040 in words is "six billion, seven hundred seventy-one million, forty thousand, forty".