30803528385 has 48 divisors (see below), whose sum is σ = 61931116416. Its totient is φ = 13871430144.

The previous prime is 30803528381. The next prime is 30803528447. The reversal of 30803528385 is 58382530803.

It is not a de Polignac number, because 30803528385 - 2² = 30803528381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 30803528385.

It is not an unprimeable number, because it can be changed into a prime (30803528381) 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 in 47 ways as a sum of consecutive naturals, for example, 708664 + ... + 750873.

It is an arithmetic number, because the mean of its divisors is an integer number (1290231592).

Almost surely, 2^30803528385 is an apocalyptic number.

30803528385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30803528385 is an abundant number, since it is smaller than the sum of its proper divisors (31127588031).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30803528385 is a wasteful number, since it uses less digits than its factorization.

30803528385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459622 (or 1459619 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 30803528385 in words is "thirty billion, eight hundred three million, five hundred twenty-eight thousand, three hundred eighty-five".