30533353988 has 12 divisors (see below), whose sum is σ = 53456210892. Its totient is φ = 15260150880.

The previous prime is 30533353973. The next prime is 30533353997. The reversal of 30533353988 is 88935333503.

It can be written as a sum of positive squares in 2 ways, for example, as 8143618564 + 22389735424 = 90242^2 + 149632^2 .

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, 1620995 + ... + 1639722.

It is an arithmetic number, because the mean of its divisors is an integer number (4454684241).

Almost surely, 2^30533353988 is an apocalyptic number.

It is an amenable number.

30533353988 is a deficient number, since it is larger than the sum of its proper divisors (22922856904).

30533353988 is a wasteful number, since it uses less digits than its factorization.

30533353988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263062 (or 3263060 counting only the distinct ones).

The product of its (nonzero) digits is 3499200, while the sum is 50.

The spelling of 30533353988 in words is "thirty billion, five hundred thirty-three million, three hundred fifty-three thousand, nine hundred eighty-eight".