9981389195352 has 48 divisors (see below), whose sum is σ = 27034725477240. Its totient is φ = 3326908635648.

The previous prime is 9981389195339. The next prime is 9981389195353. The reversal of 9981389195352 is 2535919831899.

9981389195352 is a `hidden beast` number, since 9 + 9 + 8 + 1 + 3 + 89 + 1 + 9 + 535 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981389195353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3513378 + ... + 5683889.

Almost surely, 2^{9981389195352} is an apocalyptic number.

It is an amenable number.

9981389195352 is an abundant number, since it is smaller than the sum of its proper divisors (17053336281888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9981389195352 is a wasteful number, since it uses less digits than its factorization.

9981389195352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212352 (or 9212345 counting only the distinct ones).

The product of its digits is 188956800, while the sum is 72.

The spelling of 9981389195352 in words is "nine trillion, nine hundred eighty-one billion, three hundred eighty-nine million, one hundred ninety-five thousand, three hundred fifty-two".