30428904733 has 12 divisors (see below), whose sum is σ = 31958286048. Its totient is φ = 28965777680.

The previous prime is 30428904697. The next prime is 30428904773. The reversal of 30428904733 is 33740982403.

It is not a de Polignac number, because 30428904733 - 2³³ = 21838970141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30428904733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30428904773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195091 + ... + 314512.

It is an arithmetic number, because the mean of its divisors is an integer number (2663190504).

Almost surely, 2^30428904733 is an apocalyptic number.

It is an amenable number.

30428904733 is a deficient number, since it is larger than the sum of its proper divisors (1529381315).

30428904733 is an equidigital number, since it uses as much as digits as its factorization.

30428904733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509732 (or 509703 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 30428904733 in words is "thirty billion, four hundred twenty-eight million, nine hundred four thousand, seven hundred thirty-three".