9421867238028 has 24 divisors (see below), whose sum is σ = 25124979301632. Its totient is φ = 2691962067984.

The previous prime is 9421867238023. The next prime is 9421867238051. The reversal of 9421867238028 is 8208327681249.

It is not an unprimeable number, because it can be changed into a prime (9421867238023) 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 7 ways as a sum of consecutive naturals, for example, 56082543000 + ... + 56082543167.

It is an arithmetic number, because the mean of its divisors is an integer number (1046874137568).

Almost surely, 2^{9421867238028} is an apocalyptic number.

It is an amenable number.

9421867238028 is an abundant number, since it is smaller than the sum of its proper divisors (15703112063604).

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

9421867238028 is a wasteful number, since it uses less digits than its factorization.

9421867238028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112165086181 (or 112165086179 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 60.

The spelling of 9421867238028 in words is "nine trillion, four hundred twenty-one billion, eight hundred sixty-seven million, two hundred thirty-eight thousand, twenty-eight".