30278120488 has 64 divisors (see below), whose sum is σ = 70841070720. Its totient is φ = 11786496000.

The previous prime is 30278120479. The next prime is 30278120519. The reversal of 30278120488 is 88402187203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714288 + ... + 755488.

It is an arithmetic number, because the mean of its divisors is an integer number (1106891730).

Almost surely, 2^30278120488 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 30278120488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35420535360).

30278120488 is an abundant number, since it is smaller than the sum of its proper divisors (40562950232).

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

30278120488 is a wasteful number, since it uses less digits than its factorization.

30278120488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42418 (or 42414 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 30278120488 in words is "thirty billion, two hundred seventy-eight million, one hundred twenty thousand, four hundred eighty-eight".