30630128068 has 6 divisors (see below), whose sum is σ = 53602724126. Its totient is φ = 15315064032.

The previous prime is 30630128059. The next prime is 30630128083. The reversal of 30630128068 is 86082103603.

It can be written as a sum of positive squares in only one way, i.e., 25962232384 + 4667895684 = 161128^2 + 68322^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3828766005 + ... + 3828766012.

Almost surely, 2^30630128068 is an apocalyptic number.

It is an amenable number.

30630128068 is a deficient number, since it is larger than the sum of its proper divisors (22972596058).

30630128068 is a wasteful number, since it uses less digits than its factorization.

30630128068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7657532021 (or 7657532019 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 30630128068 in words is "thirty billion, six hundred thirty million, one hundred twenty-eight thousand, sixty-eight".