121763534136 has 64 divisors (see below), whose sum is σ = 320261467680. Its totient is φ = 38527672320.

The previous prime is 121763534051. The next prime is 121763534141. The reversal of 121763534136 is 631435367121.

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 15 ways as a sum of consecutive naturals, for example, 1635801 + ... + 1708616.

Almost surely, 2^121763534136 is an apocalyptic number.

It is an amenable number.

121763534136 is an abundant number, since it is smaller than the sum of its proper divisors (198497933544).

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

121763534136 is a wasteful number, since it uses less digits than its factorization.

121763534136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3344504 (or 3344500 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The spelling of 121763534136 in words is "one hundred twenty-one billion, seven hundred sixty-three million, five hundred thirty-four thousand, one hundred thirty-six".