30420778098 has 16 divisors (see below), whose sum is σ = 63486841536. Its totient is φ = 9699378480.

The previous prime is 30420778081. The next prime is 30420778111. The reversal of 30420778098 is 89087702403.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 110220073 + ... + 110220348.

It is an arithmetic number, because the mean of its divisors is an integer number (3967927596).

Almost surely, 2^30420778098 is an apocalyptic number.

30420778098 is an abundant number, since it is smaller than the sum of its proper divisors (33066063438).

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

30420778098 is a wasteful number, since it uses less digits than its factorization.

30420778098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220440449.

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 30420778098 in words is "thirty billion, four hundred twenty million, seven hundred seventy-eight thousand, ninety-eight".