77679202668 has 48 divisors (see below), whose sum is σ = 182235590880. Its totient is φ = 25752720384.

The previous prime is 77679202621. The next prime is 77679202669. The reversal of 77679202668 is 86620297677.

It is not an unprimeable number, because it can be changed into a prime (77679202669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2670330 + ... + 2699262.

It is an arithmetic number, because the mean of its divisors is an integer number (3796574810).

Almost surely, 2^77679202668 is an apocalyptic number.

It is an amenable number.

77679202668 is an abundant number, since it is smaller than the sum of its proper divisors (104556388212).

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

77679202668 is a wasteful number, since it uses less digits than its factorization.

77679202668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30146 (or 30144 counting only the distinct ones).

The product of its (nonzero) digits is 21337344, while the sum is 60.

The spelling of 77679202668 in words is "seventy-seven billion, six hundred seventy-nine million, two hundred two thousand, six hundred sixty-eight".