9802381315621 has 8 divisors (see below), whose sum is σ = 10122510700800. Its totient is φ = 9482497151520.

The previous prime is 9802381315607. The next prime is 9802381315673. The reversal of 9802381315621 is 1265131832089.

9802381315621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9802381315621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9802381310621) 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, 61224016 + ... + 61383913.

It is an arithmetic number, because the mean of its divisors is an integer number (1265313837600).

Almost surely, 2^{9802381315621} is an apocalyptic number.

It is an amenable number.

9802381315621 is a deficient number, since it is larger than the sum of its proper divisors (320129385179).

9802381315621 is a wasteful number, since it uses less digits than its factorization.

9802381315621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122610539.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 9802381315621 in words is "nine trillion, eight hundred two billion, three hundred eighty-one million, three hundred fifteen thousand, six hundred twenty-one".