30486420128 has 12 divisors (see below), whose sum is σ = 60020139690. Its totient is φ = 15243210048.

The previous prime is 30486420079. The next prime is 30486420131. The reversal of 30486420128 is 82102468403.

It can be written as a sum of positive squares in only one way, i.e., 30294098704 + 192321424 = 174052^2 + 13868^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30486420091 and 30486420100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 476350283 + ... + 476350346.

Almost surely, 2^30486420128 is an apocalyptic number.

It is an amenable number.

30486420128 is a deficient number, since it is larger than the sum of its proper divisors (29533719562).

30486420128 is an equidigital number, since it uses as much as digits as its factorization.

30486420128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952700639 (or 952700631 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The spelling of 30486420128 in words is "thirty billion, four hundred eighty-six million, four hundred twenty thousand, one hundred twenty-eight".