77913229696 has 32 divisors (see below), whose sum is σ = 155252404800. Its totient is φ = 38947920384.

The previous prime is 77913229673. The next prime is 77913229699. The reversal of 77913229696 is 69692231977.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77913229699) 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, 528186 + ... + 659398.

It is an arithmetic number, because the mean of its divisors is an integer number (4851637650).

Almost surely, 2^77913229696 is an apocalyptic number.

It is an amenable number.

77913229696 is a deficient number, since it is larger than the sum of its proper divisors (77339175104).

77913229696 is a wasteful number, since it uses less digits than its factorization.

77913229696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135866 (or 135854 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 61.

The spelling of 77913229696 in words is "seventy-seven billion, nine hundred thirteen million, two hundred twenty-nine thousand, six hundred ninety-six".