9621353542148 has 12 divisors (see below), whose sum is σ = 16851203850012. Its totient is φ = 4806723870720.

The previous prime is 9621353542133. The next prime is 9621353542169. The reversal of 9621353542148 is 8412453531269.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1988190241024 + 7633163301124 = 1410032^2 + 2762818^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9621353542148.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988219613 + ... + 988229348.

It is an arithmetic number, because the mean of its divisors is an integer number (1404266987501).

Almost surely, 2^{9621353542148} is an apocalyptic number.

It is an amenable number.

9621353542148 is a deficient number, since it is larger than the sum of its proper divisors (7229850307864).

9621353542148 is a wasteful number, since it uses less digits than its factorization.

9621353542148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976450182 (or 1976450180 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 53.

The spelling of 9621353542148 in words is "nine trillion, six hundred twenty-one billion, three hundred fifty-three million, five hundred forty-two thousand, one hundred forty-eight".