30575676520 has 128 divisors (see below), whose sum is σ = 73461427200. Its totient is φ = 11428724736.

The previous prime is 30575676499. The next prime is 30575676529. The reversal of 30575676520 is 2567657503.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (30575676529) 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 31 ways as a sum of consecutive naturals, for example, 7047792 + ... + 7052128.

It is an arithmetic number, because the mean of its divisors is an integer number (573917400).

Almost surely, 2^30575676520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30575676520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36730713600).

30575676520 is an abundant number, since it is smaller than the sum of its proper divisors (42885750680).

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

30575676520 is a wasteful number, since it uses less digits than its factorization.

30575676520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547 (or 4543 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 46.

The spelling of 30575676520 in words is "thirty billion, five hundred seventy-five million, six hundred seventy-six thousand, five hundred twenty".