6766527261 has 16 divisors (see below), whose sum is σ = 9816209984. Its totient is φ = 4121086464.

The previous prime is 6766527241. The next prime is 6766527269. The reversal of 6766527261 is 1627256676.

It is a de Polignac number, because none of the positive numbers 2^k-6766527261 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6766527261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6766527269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890551 + ... + 898116.

It is an arithmetic number, because the mean of its divisors is an integer number (613513124).

Almost surely, 2^6766527261 is an apocalyptic number.

It is an amenable number.

6766527261 is a deficient number, since it is larger than the sum of its proper divisors (3049682723).

6766527261 is a wasteful number, since it uses less digits than its factorization.

6766527261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788780.

The product of its digits is 1270080, while the sum is 48.

The square root of 6766527261 is about 82258.9038402531. The cubic root of 6766527261 is about 1891.4227653722.

The spelling of 6766527261 in words is "six billion, seven hundred sixty-six million, five hundred twenty-seven thousand, two hundred sixty-one".