30530075278 has 16 divisors (see below), whose sum is σ = 47475282816. Its totient is φ = 14709208320.

The previous prime is 30530075267. The next prime is 30530075297. The reversal of 30530075278 is 87257003503.

It is a self number, because there is not a number n which added to its sum of digits gives 30530075278.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042251 + ... + 1071142.

It is an arithmetic number, because the mean of its divisors is an integer number (2967205176).

Almost surely, 2^30530075278 is an apocalyptic number.

30530075278 is a deficient number, since it is larger than the sum of its proper divisors (16945207538).

30530075278 is a wasteful number, since it uses less digits than its factorization.

30530075278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113659.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 30530075278 in words is "thirty billion, five hundred thirty million, seventy-five thousand, two hundred seventy-eight".