30020497794 has 48 divisors (see below), whose sum is σ = 74362983552. Its totient is φ = 8574225984.

The previous prime is 30020497769. The next prime is 30020497813. The reversal of 30020497794 is 49779402003.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 324742 + ... + 406814.

It is an arithmetic number, because the mean of its divisors is an integer number (1549228824).

Almost surely, 2^30020497794 is an apocalyptic number.

30020497794 is an abundant number, since it is smaller than the sum of its proper divisors (44342485758).

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

30020497794 is a wasteful number, since it uses less digits than its factorization.

30020497794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84991 (or 84988 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

Adding to 30020497794 its reverse (49779402003), we get a palindrome (79799899797).

The spelling of 30020497794 in words is "thirty billion, twenty million, four hundred ninety-seven thousand, seven hundred ninety-four".