77832820016 has 20 divisors (see below), whose sum is σ = 172344101712. Its totient is φ = 33356922816.

The previous prime is 77832819959. The next prime is 77832820033. The reversal of 77832820016 is 61002823877.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347467835 + ... + 347468058.

Almost surely, 2^77832820016 is an apocalyptic number.

It is an amenable number.

77832820016 is an abundant number, since it is smaller than the sum of its proper divisors (94511281696).

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

77832820016 is a wasteful number, since it uses less digits than its factorization.

77832820016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694935908 (or 694935902 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 77832820016 in words is "seventy-seven billion, eight hundred thirty-two million, eight hundred twenty thousand, sixteen".