77809545230 has 32 divisors (see below), whose sum is σ = 144593406720. Its totient is φ = 30116021760.

The previous prime is 77809545227. The next prime is 77809545257. The reversal of 77809545230 is 3254590877.

It is a congruent number.

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, 4889126 + ... + 4905014.

It is an arithmetic number, because the mean of its divisors is an integer number (4518543960).

Almost surely, 2^77809545230 is an apocalyptic number.

77809545230 is a deficient number, since it is larger than the sum of its proper divisors (66783861490).

77809545230 is a wasteful number, since it uses less digits than its factorization.

77809545230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31724.

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 77809545230 in words is "seventy-seven billion, eight hundred nine million, five hundred forty-five thousand, two hundred thirty".