77263065216 has 64 divisors (see below), whose sum is σ = 228033362400. Its totient is φ = 25754353920.

The previous prime is 77263065211. The next prime is 77263065251. The reversal of 77263065216 is 61256036277.

77263065216 is a `hidden beast` number, since 7 + 7 + 2 + 630 + 6 + 5 + 2 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (77263065211) 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, 11174650 + ... + 11181561.

Almost surely, 2^77263065216 is an apocalyptic number.

It is an amenable number.

77263065216 is an abundant number, since it is smaller than the sum of its proper divisors (150770297184).

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

77263065216 is a wasteful number, since it uses less digits than its factorization.

77263065216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22356234 (or 22356216 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The spelling of 77263065216 in words is "seventy-seven billion, two hundred sixty-three million, sixty-five thousand, two hundred sixteen".