30939478080 has 560 divisors, whose sum is σ = 118568077824. Its totient is φ = 6827950080.

The previous prime is 30939478079. The next prime is 30939478133. The reversal of 30939478080 is 8087493903.

It is a tau number, because it is divible by the number of its divisors (560).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 71453544 + ... + 71453976.

Almost surely, 2^30939478080 is an apocalyptic number.

30939478080 is a gapful number since it is divisible by the number (30) 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 30939478080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59284038912).

30939478080 is an abundant number, since it is smaller than the sum of its proper divisors (87628599744).

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

30939478080 is an equidigital number, since it uses as much as digits as its factorization.

30939478080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 30939478080 in words is "thirty billion, nine hundred thirty-nine million, four hundred seventy-eight thousand, eighty".