75330761061721 has 8 divisors (see below), whose sum is σ = 82179159969600. Its totient is φ = 68482386804240.

The previous prime is 75330761061671. The next prime is 75330761061733. The reversal of 75330761061721 is 12716016703357.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75330761061721 - 2⁹ = 75330761061209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75330761062721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 544540 + ... + 12286498.

It is an arithmetic number, because the mean of its divisors is an integer number (10272394996200).

Almost surely, 2^{75330761061721} is an apocalyptic number.

It is an amenable number.

75330761061721 is a deficient number, since it is larger than the sum of its proper divisors (6848398907879).

75330761061721 is a wasteful number, since it uses less digits than its factorization.

75330761061721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12325199.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 75330761061721 in words is "seventy-five trillion, three hundred thirty billion, seven hundred sixty-one million, sixty-one thousand, seven hundred twenty-one".