30019477908 has 192 divisors, whose sum is σ = 83642388480. Its totient is φ = 8202163200.

The previous prime is 30019477907. The next prime is 30019477963. The reversal of 30019477908 is 80977491003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30019477907) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 71645323 + ... + 71645741.

It is an arithmetic number, because the mean of its divisors is an integer number (435637440).

Almost surely, 2^30019477908 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 30019477908, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41821194240).

30019477908 is an abundant number, since it is smaller than the sum of its proper divisors (53622910572).

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

30019477908 is a wasteful number, since it uses less digits than its factorization.

30019477908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 48.

The spelling of 30019477908 in words is "thirty billion, nineteen million, four hundred seventy-seven thousand, nine hundred eight".