30612017938 has 16 divisors (see below), whose sum is σ = 46228261464. Its totient is φ = 15202857600.

The previous prime is 30612017927. The next prime is 30612017959. The reversal of 30612017938 is 83971021603.

It can be written as a sum of positive squares in 4 ways, for example, as 29564395249 + 1047622689 = 171943^2 + 32367^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30612017938.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172156 + ... + 301432.

Almost surely, 2^30612017938 is an apocalyptic number.

30612017938 is a deficient number, since it is larger than the sum of its proper divisors (15616243526).

30612017938 is a wasteful number, since it uses less digits than its factorization.

30612017938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130077.

The product of its (nonzero) digits is 54432, while the sum is 40.

The spelling of 30612017938 in words is "thirty billion, six hundred twelve million, seventeen thousand, nine hundred thirty-eight".