121752365077 has 16 divisors (see below), whose sum is σ = 140234371200. Its totient is φ = 103542865920.

The previous prime is 121752365029. The next prime is 121752365089. The reversal of 121752365077 is 770563257121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121752365077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752365017) 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, 6858549 + ... + 6876277.

It is an arithmetic number, because the mean of its divisors is an integer number (8764648200).

Almost surely, 2^121752365077 is an apocalyptic number.

It is an amenable number.

121752365077 is a deficient number, since it is larger than the sum of its proper divisors (18482006123).

121752365077 is a wasteful number, since it uses less digits than its factorization.

121752365077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25356.

The product of its (nonzero) digits is 617400, while the sum is 46.

The spelling of 121752365077 in words is "one hundred twenty-one billion, seven hundred fifty-two million, three hundred sixty-five thousand, seventy-seven".