77969378696 has 32 divisors (see below), whose sum is σ = 162097303680. Its totient is φ = 34859630400.

The previous prime is 77969378693. The next prime is 77969378699. The reversal of 77969378696 is 69687396977.

It is an interprime number because it is at equal distance from previous prime (77969378693) and next prime (77969378699).

It is not an unprimeable number, because it can be changed into a prime (77969378693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7257056 + ... + 7267791.

It is an arithmetic number, because the mean of its divisors is an integer number (5065540740).

Almost surely, 2^77969378696 is an apocalyptic number.

It is an amenable number.

77969378696 is an abundant number, since it is smaller than the sum of its proper divisors (84127924984).

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

77969378696 is a wasteful number, since it uses less digits than its factorization.

77969378696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14524925 (or 14524921 counting only the distinct ones).

The product of its digits is 1296243648, while the sum is 77.

The spelling of 77969378696 in words is "seventy-seven billion, nine hundred sixty-nine million, three hundred seventy-eight thousand, six hundred ninety-six".