7796669891 has 4 divisors (see below), whose sum is σ = 7802719800. Its totient is φ = 7790619984.

The previous prime is 7796669879. The next prime is 7796669917. The reversal of 7796669891 is 1989666977.

7796669891 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7796669891 - 2¹⁸ = 7796407747 is a prime.

It is a super-3 number, since 3×7796669891³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7796639891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3023021 + ... + 3025598.

It is an arithmetic number, because the mean of its divisors is an integer number (1950679950).

Almost surely, 2^7796669891 is an apocalyptic number.

7796669891 is a deficient number, since it is larger than the sum of its proper divisors (6049909).

7796669891 is a wasteful number, since it uses less digits than its factorization.

7796669891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049908.

The product of its digits is 61725888, while the sum is 68.

The square root of 7796669891 is about 88298.7536208751. The cubic root of 7796669891 is about 1982.9102097225.

The spelling of 7796669891 in words is "seven billion, seven hundred ninety-six million, six hundred sixty-nine thousand, eight hundred ninety-one".