30819206912 has 72 divisors (see below), whose sum is σ = 66565680720. Its totient is φ = 14156513280.

The previous prime is 30819206909. The next prime is 30819206939. The reversal of 30819206912 is 21960291803.

It is a self number, because there is not a number n which added to its sum of digits gives 30819206912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 680264 + ... + 724152.

Almost surely, 2^30819206912 is an apocalyptic number.

30819206912 is a gapful number since it is divisible by the number (32) 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 30819206912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33282840360).

30819206912 is an abundant number, since it is smaller than the sum of its proper divisors (35746473808).

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

30819206912 is a wasteful number, since it uses less digits than its factorization.

30819206912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44129 (or 44115 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 30819206912 in words is "thirty billion, eight hundred nineteen million, two hundred six thousand, nine hundred twelve".