121844954136 has 16 divisors (see below), whose sum is σ = 304612385400. Its totient is φ = 40614984704.

The previous prime is 121844954129. The next prime is 121844954141. The reversal of 121844954136 is 631459448121.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 2538436521 + ... + 2538436568.

Almost surely, 2^121844954136 is an apocalyptic number.

It is an amenable number.

121844954136 is an abundant number, since it is smaller than the sum of its proper divisors (182767431264).

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

121844954136 is a wasteful number, since it uses less digits than its factorization.

121844954136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076873098 (or 5076873094 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The spelling of 121844954136 in words is "one hundred twenty-one billion, eight hundred forty-four million, nine hundred fifty-four thousand, one hundred thirty-six".