30768771860 has 12 divisors (see below), whose sum is σ = 64614420948. Its totient is φ = 12307508736.

The previous prime is 30768771841. The next prime is 30768771871. The reversal of 30768771860 is 6817786703.

It can be written as a sum of positive squares in 2 ways, for example, as 8540347396 + 22228424464 = 92414^2 + 149092^2 .

It is a congruent 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, 769219277 + ... + 769219316.

It is an arithmetic number, because the mean of its divisors is an integer number (5384535079).

Almost surely, 2^30768771860 is an apocalyptic number.

It is an amenable number.

30768771860 is an abundant number, since it is smaller than the sum of its proper divisors (33845649088).

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

30768771860 is a wasteful number, since it uses less digits than its factorization.

30768771860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538438602 (or 1538438600 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 53.

The spelling of 30768771860 in words is "thirty billion, seven hundred sixty-eight million, seven hundred seventy-one thousand, eight hundred sixty".