77843327652 has 36 divisors (see below), whose sum is σ = 196779266320. Its totient is φ = 25946637552.

The previous prime is 77843327609. The next prime is 77843327761. The reversal of 77843327652 is 25672334877.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1342599 + ... + 1399377.

Almost surely, 2^77843327652 is an apocalyptic number.

It is an amenable number.

77843327652 is an abundant number, since it is smaller than the sum of its proper divisors (118935938668).

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

77843327652 is a wasteful number, since it uses less digits than its factorization.

77843327652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94872 (or 94867 counting only the distinct ones).

The product of its digits is 11854080, while the sum is 54.

The spelling of 77843327652 in words is "seventy-seven billion, eight hundred forty-three million, three hundred twenty-seven thousand, six hundred fifty-two".