30281322628 has 6 divisors (see below), whose sum is σ = 52992314606. Its totient is φ = 15140661312.

The previous prime is 30281322623. The next prime is 30281322649. The reversal of 30281322628 is 82622318203.

It can be written as a sum of positive squares in only one way, i.e., 23534014464 + 6747308164 = 153408^2 + 82142^2 .

It is not an unprimeable number, because it can be changed into a prime (30281322623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3785165325 + ... + 3785165332.

Almost surely, 2^30281322628 is an apocalyptic number.

It is an amenable number.

30281322628 is a deficient number, since it is larger than the sum of its proper divisors (22710991978).

30281322628 is a wasteful number, since it uses less digits than its factorization.

30281322628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570330661 (or 7570330659 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 30281322628 in words is "thirty billion, two hundred eighty-one million, three hundred twenty-two thousand, six hundred twenty-eight".