9755431975321 has 4 divisors (see below), whose sum is σ = 9758853736144. Its totient is φ = 9752010214500.

The previous prime is 9755431975307. The next prime is 9755431975403. The reversal of 9755431975321 is 1235791345579.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9755431975321 - 2¹³ = 9755431967129 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9755431975321.

It is not an unprimeable number, because it can be changed into a prime (9755431975721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1710876135 + ... + 1710881836.

It is an arithmetic number, because the mean of its divisors is an integer number (2439713434036).

Almost surely, 2^{9755431975321} is an apocalyptic number.

It is an amenable number.

9755431975321 is a deficient number, since it is larger than the sum of its proper divisors (3421760823).

9755431975321 is a wasteful number, since it uses less digits than its factorization.

9755431975321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421760822.

The product of its digits is 35721000, while the sum is 61.

The spelling of 9755431975321 in words is "nine trillion, seven hundred fifty-five billion, four hundred thirty-one million, nine hundred seventy-five thousand, three hundred twenty-one".