30199788861 has 16 divisors (see below), whose sum is σ = 44755778880. Its totient is φ = 17957563520.

The previous prime is 30199788859. The next prime is 30199788889. The reversal of 30199788861 is 16888799103.

It is a cyclic number.

It is not a de Polignac number, because 30199788861 - 2¹ = 30199788859 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 30199788795 and 30199788804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30199788821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8631696 + ... + 8635193.

It is an arithmetic number, because the mean of its divisors is an integer number (2797236180).

Almost surely, 2^30199788861 is an apocalyptic number.

It is an amenable number.

30199788861 is a deficient number, since it is larger than the sum of its proper divisors (14555990019).

30199788861 is a wasteful number, since it uses less digits than its factorization.

30199788861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17266956.

The product of its (nonzero) digits is 5225472, while the sum is 60.

The spelling of 30199788861 in words is "thirty billion, one hundred ninety-nine million, seven hundred eighty-eight thousand, eight hundred sixty-one".