121766788 has 48 divisors (see below), whose sum is σ = 251870976. Its totient is φ = 50780160.

The previous prime is 121766783. The next prime is 121766789. The reversal of 121766788 is 887667121.

It is not an unprimeable number, because it can be changed into a prime (121766783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109845 + ... + 110947.

It is an arithmetic number, because the mean of its divisors is an integer number (5247312).

Almost surely, 2^121766788 is an apocalyptic number.

It is an amenable number.

121766788 is an abundant number, since it is smaller than the sum of its proper divisors (130104188).

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

121766788 is a wasteful number, since it uses less digits than its factorization.

121766788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324 (or 1322 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The square root of 121766788 is about 11034.7989560300. The cubic root of 121766788 is about 495.6513386040.

The spelling of 121766788 in words is "one hundred twenty-one million, seven hundred sixty-six thousand, seven hundred eighty-eight".