77841943893384 has 64 divisors (see below), whose sum is σ = 212309435370240. Its totient is φ = 23586998429760.

The previous prime is 77841943893299. The next prime is 77841943893419. The reversal of 77841943893384 is 48339834914877.

77841943893384 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4934134 + ... + 13417509.

It is an arithmetic number, because the mean of its divisors is an integer number (3317334927660).

Almost surely, 2^{77841943893384} is an apocalyptic number.

It is an amenable number.

77841943893384 is an abundant number, since it is smaller than the sum of its proper divisors (134467491476856).

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

77841943893384 is a wasteful number, since it uses less digits than its factorization.

77841943893384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18367730 (or 18367726 counting only the distinct ones).

The product of its digits is 3511517184, while the sum is 78.

The spelling of 77841943893384 in words is "seventy-seven trillion, eight hundred forty-one billion, nine hundred forty-three million, eight hundred ninety-three thousand, three hundred eighty-four".