7677090909 has 12 divisors (see below), whose sum is σ = 11135147452. Its totient is φ = 5096822400.

The previous prime is 7677090851. The next prime is 7677090919. The reversal of 7677090909 is 9090907767.

It can be written as a sum of positive squares in 2 ways, for example, as 3028851225 + 4648239684 = 55035^2 + 68178^2 .

It is not a de Polignac number, because 7677090909 - 2⁷ = 7677090781 is a prime.

It is a Duffinian number.

7677090909 is a modest number, since divided by 90909 gives 7677 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7677090919) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1767562 + ... + 1771899.

Almost surely, 2^7677090909 is an apocalyptic number.

It is an amenable number.

7677090909 is a deficient number, since it is larger than the sum of its proper divisors (3458056543).

7677090909 is a wasteful number, since it uses less digits than its factorization.

7677090909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539708 (or 3539705 counting only the distinct ones).

The product of its (nonzero) digits is 1500282, while the sum is 54.

The square root of 7677090909 is about 87619.0099750049. The cubic root of 7677090909 is about 1972.7205156657.

The spelling of 7677090909 in words is "seven billion, six hundred seventy-seven million, ninety thousand, nine hundred nine".