30278907468 has 36 divisors (see below), whose sum is σ = 81040606920. Its totient is φ = 9499264896.

The previous prime is 30278907457. The next prime is 30278907469. The reversal of 30278907468 is 86470987203.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (30278907469) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 24737058 + ... + 24738281.

It is an arithmetic number, because the mean of its divisors is an integer number (2251127970).

Almost surely, 2^30278907468 is an apocalyptic number.

It is an amenable number.

30278907468 is an abundant number, since it is smaller than the sum of its proper divisors (50761699452).

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

30278907468 is a wasteful number, since it uses less digits than its factorization.

30278907468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49475366 (or 49475361 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 30278907468 in words is "thirty billion, two hundred seventy-eight million, nine hundred seven thousand, four hundred sixty-eight".