6710775891 has 12 divisors (see below), whose sum is σ = 9474862536. Its totient is φ = 4210315840.

The previous prime is 6710775881. The next prime is 6710775893. The reversal of 6710775891 is 1985770176.

It is not a de Polignac number, because 6710775891 - 2¹¹ = 6710773843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (6710775893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 579286 + ... + 590756.

It is an arithmetic number, because the mean of its divisors is an integer number (789571878).

Almost surely, 2^6710775891 is an apocalyptic number.

6710775891 is a deficient number, since it is larger than the sum of its proper divisors (2764086645).

6710775891 is an frugal number, since it uses more digits than its factorization.

6710775891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22962 (or 11491 counting only the distinct ones).

The product of its (nonzero) digits is 740880, while the sum is 51.

The square root of 6710775891 is about 81919.3255038150. The cubic root of 6710775891 is about 1886.2137736847.

Multiplying 6710775891 by its sum of digits (51), we get a square (342249570441 = 585021²).

6710775891 divided by its sum of digits (51) gives a square (131583841 = 11471²).

The spelling of 6710775891 in words is "six billion, seven hundred ten million, seven hundred seventy-five thousand, eight hundred ninety-one".