6987777711 has 16 divisors (see below), whose sum is σ = 9359454720. Its totient is φ = 4637337120.

The previous prime is 6987777707. The next prime is 6987777743. The reversal of 6987777711 is 1177777896.

It is not a de Polignac number, because 6987777711 - 2² = 6987777707 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987770711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465950 + ... + 1470708.

It is an arithmetic number, because the mean of its divisors is an integer number (584965920).

Almost surely, 2^6987777711 is an apocalyptic number.

6987777711 is a deficient number, since it is larger than the sum of its proper divisors (2371677009).

6987777711 is a wasteful number, since it uses less digits than its factorization.

6987777711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886.

The product of its digits is 7260624, while the sum is 60.

The square root of 6987777711 is about 83592.9285944690. The cubic root of 6987777711 is about 1911.8171818828.

The spelling of 6987777711 in words is "six billion, nine hundred eighty-seven million, seven hundred seventy-seven thousand, seven hundred eleven".