6696264891 has 8 divisors (see below), whose sum is σ = 8929138960. Its totient is φ = 4463783712.

The previous prime is 6696264877. The next prime is 6696264973. The reversal of 6696264891 is 1984626966.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6696264891 - 2¹⁰ = 6696263867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6696264811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55840 + ... + 128493.

It is an arithmetic number, because the mean of its divisors is an integer number (1116142370).

Almost surely, 2^6696264891 is an apocalyptic number.

6696264891 is a deficient number, since it is larger than the sum of its proper divisors (2232874069).

6696264891 is a wasteful number, since it uses less digits than its factorization.

6696264891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196445.

The product of its digits is 6718464, while the sum is 57.

The square root of 6696264891 is about 81830.7087284474. The cubic root of 6696264891 is about 1884.8532454519.

The spelling of 6696264891 in words is "six billion, six hundred ninety-six million, two hundred sixty-four thousand, eight hundred ninety-one".