9381810252 has 18 divisors (see below), whose sum is σ = 21891673524. Its totient is φ = 3127158240.

The previous prime is 9381810233. The next prime is 9381810293. The reversal of 9381810252 is 2520181839.

It is a self number, because there is not a number n which added to its sum of digits gives 9381810252.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 321552 + ... + 349512.

Almost surely, 2^9381810252 is an apocalyptic number.

It is an amenable number.

9381810252 is an abundant number, since it is smaller than the sum of its proper divisors (12509863272).

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

9381810252 is an frugal number, since it uses more digits than its factorization.

9381810252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55929 (or 27966 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 39.

The square root of 9381810252 is about 96859.7452608668. The cubic root of 9381810252 is about 2109.0921164716.

The spelling of 9381810252 in words is "nine billion, three hundred eighty-one million, eight hundred ten thousand, two hundred fifty-two".