121752055672 has 32 divisors (see below), whose sum is σ = 245862247680. Its totient is φ = 56189427840.

The previous prime is 121752055661. The next prime is 121752055709. The reversal of 121752055672 is 276550257121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1986478 + ... + 2046850.

It is an arithmetic number, because the mean of its divisors is an integer number (7683195240).

Almost surely, 2^121752055672 is an apocalyptic number.

It is an amenable number.

121752055672 is an abundant number, since it is smaller than the sum of its proper divisors (124110192008).

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

121752055672 is a wasteful number, since it uses less digits than its factorization.

121752055672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79783 (or 79779 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 121752055672 in words is "one hundred twenty-one billion, seven hundred fifty-two million, fifty-five thousand, six hundred seventy-two".