6711128775 has 96 divisors (see below), whose sum is σ = 13705789440. Its totient is φ = 3197232000.

The previous prime is 6711128773. The next prime is 6711128789. The reversal of 6711128775 is 5778211176.

It is not a de Polignac number, because 6711128775 - 2¹ = 6711128773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6711128775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6711128771) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 259690 + ... + 284360.

It is an arithmetic number, because the mean of its divisors is an integer number (142768640).

Almost surely, 2^6711128775 is an apocalyptic number.

6711128775 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6711128775 is an abundant number, since it is smaller than the sum of its proper divisors (6994660665).

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

6711128775 is a wasteful number, since it uses less digits than its factorization.

6711128775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24734 (or 24723 counting only the distinct ones).

The product of its digits is 164640, while the sum is 45.

The square root of 6711128775 is about 81921.4793262426. The cubic root of 6711128775 is about 1886.2468350875.

The spelling of 6711128775 in words is "six billion, seven hundred eleven million, one hundred twenty-eight thousand, seven hundred seventy-five".