30020605771772 has 72 divisors (see below), whose sum is σ = 66017465049312. Its totient is φ = 11692484622720.

The previous prime is 30020605771747. The next prime is 30020605771801. The reversal of 30020605771772 is 27717750602003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8830538 + ... + 11748174.

It is an arithmetic number, because the mean of its divisors is an integer number (916909236796).

Almost surely, 2^{30020605771772} 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 30020605771772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33008732524656).

30020605771772 is an abundant number, since it is smaller than the sum of its proper divisors (35996859277540).

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

30020605771772 is a wasteful number, since it uses less digits than its factorization.

30020605771772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920707 (or 2920694 counting only the distinct ones).

The product of its (nonzero) digits is 864360, while the sum is 47.

The spelling of 30020605771772 in words is "thirty trillion, twenty billion, six hundred five million, seven hundred seventy-one thousand, seven hundred seventy-two".