77683105072 has 20 divisors (see below), whose sum is σ = 159364605816. Its totient is φ = 36556755200.

The previous prime is 77683105037. The next prime is 77683105099. The reversal of 77683105072 is 27050138677.

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, 142799554 + ... + 142800097.

Almost surely, 2^77683105072 is an apocalyptic number.

It is an amenable number.

77683105072 is an abundant number, since it is smaller than the sum of its proper divisors (81681500744).

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

77683105072 is a wasteful number, since it uses less digits than its factorization.

77683105072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285599676 (or 285599670 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 46.

The spelling of 77683105072 in words is "seventy-seven billion, six hundred eighty-three million, one hundred five thousand, seventy-two".