77734586868512 has 48 divisors (see below), whose sum is σ = 174904201523520. Its totient is φ = 33314559883008.

The previous prime is 77734586868503. The next prime is 77734586868551. The reversal of 77734586868512 is 21586868543777.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28512863 + ... + 31119969.

It is an arithmetic number, because the mean of its divisors is an integer number (3643837531740).

Almost surely, 2^{77734586868512} is an apocalyptic number.

It is an amenable number.

77734586868512 is an abundant number, since it is smaller than the sum of its proper divisors (97169614655008).

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

77734586868512 is a wasteful number, since it uses less digits than its factorization.

77734586868512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740233 (or 2740225 counting only the distinct ones).

The product of its digits is 3793305600, while the sum is 77.

The spelling of 77734586868512 in words is "seventy-seven trillion, seven hundred thirty-four billion, five hundred eighty-six million, eight hundred sixty-eight thousand, five hundred twelve".