30308795136 has 216 divisors, whose sum is σ = 95397731520. Its totient is φ = 9570825216.

The previous prime is 30308795071. The next prime is 30308795149. The reversal of 30308795136 is 63159780303.

30308795136 is a `hidden beast` number, since 30 + 30 + 8 + 79 + 513 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a junction number, because it is equal to n+sod(n) for n = 30308795091 and 30308795100.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1169131 + ... + 1194773.

Almost surely, 2^30308795136 is an apocalyptic number.

30308795136 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30308795136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47698865760).

30308795136 is an abundant number, since it is smaller than the sum of its proper divisors (65088936384).

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

30308795136 is an equidigital number, since it uses as much as digits as its factorization.

30308795136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25693 (or 25667 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 30308795136 in words is "thirty billion, three hundred eight million, seven hundred ninety-five thousand, one hundred thirty-six".