7697791812 has 12 divisors (see below), whose sum is σ = 17961514256. Its totient is φ = 2565930600.

The previous prime is 7697791807. The next prime is 7697791853. The reversal of 7697791812 is 2181977967.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320741314 + ... + 320741337.

Almost surely, 2^7697791812 is an apocalyptic number.

It is an amenable number.

7697791812 is an abundant number, since it is smaller than the sum of its proper divisors (10263722444).

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

7697791812 is a wasteful number, since it uses less digits than its factorization.

7697791812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641482658 (or 641482656 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 57.

The square root of 7697791812 is about 87737.0606528393. The cubic root of 7697791812 is about 1974.4920393816.

The spelling of 7697791812 in words is "seven billion, six hundred ninety-seven million, seven hundred ninety-one thousand, eight hundred twelve".