9621381921035 has 8 divisors (see below), whose sum is σ = 11547626238576. Its totient is φ = 7695793581280.

The previous prime is 9621381921007. The next prime is 9621381921037. The reversal of 9621381921035 is 5301291831269.

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

It is not a de Polignac number, because 9621381921035 - 2¹⁰ = 9621381920011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9621381921037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163962176 + ... + 164020845.

It is an arithmetic number, because the mean of its divisors is an integer number (1443453279822).

Almost surely, 2^{9621381921035} is an apocalyptic number.

9621381921035 is a deficient number, since it is larger than the sum of its proper divisors (1926244317541).

9621381921035 is a wasteful number, since it uses less digits than its factorization.

9621381921035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327988893.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 9621381921035 in words is "nine trillion, six hundred twenty-one billion, three hundred eighty-one million, nine hundred twenty-one thousand, thirty-five".