30145757320 has 64 divisors (see below), whose sum is σ = 77532681600. Its totient is φ = 10333685760.

The previous prime is 30145757309. The next prime is 30145757321. The reversal of 30145757320 is 2375754103.

It is a self number, because there is not a number n which added to its sum of digits gives 30145757320.

It is not an unprimeable number, because it can be changed into a prime (30145757321) 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 15 ways as a sum of consecutive naturals, for example, 2618136 + ... + 2629624.

It is an arithmetic number, because the mean of its divisors is an integer number (1211448150).

Almost surely, 2^30145757320 is an apocalyptic number.

It is an amenable number.

30145757320 is an abundant number, since it is smaller than the sum of its proper divisors (47386924280).

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

30145757320 is a wasteful number, since it uses less digits than its factorization.

30145757320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20878 (or 20874 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 37.

The spelling of 30145757320 in words is "thirty billion, one hundred forty-five million, seven hundred fifty-seven thousand, three hundred twenty".