77670068896 has 48 divisors (see below), whose sum is σ = 178821808704. Its totient is φ = 32513048064.

The previous prime is 77670068863. The next prime is 77670068899. The reversal of 77670068896 is 69886007677.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (77670068899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4022245 + ... + 4041508.

It is an arithmetic number, because the mean of its divisors is an integer number (3725454348).

Almost surely, 2^77670068896 is an apocalyptic number.

It is an amenable number.

77670068896 is an abundant number, since it is smaller than the sum of its proper divisors (101151739808).

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

77670068896 is a wasteful number, since it uses less digits than its factorization.

77670068896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8063813 (or 8063805 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 64.

The spelling of 77670068896 in words is "seventy-seven billion, six hundred seventy million, sixty-eight thousand, eight hundred ninety-six".