8321144431852 has 24 divisors (see below), whose sum is σ = 16642797579296. Its totient is φ = 3566095746048.

The previous prime is 8321144431819. The next prime is 8321144431903. The reversal of 8321144431852 is 2581344411238.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3606363 + ... + 5445010.

Almost surely, 2^{8321144431852} is an apocalyptic number.

It is an amenable number.

8321144431852 is an abundant number, since it is smaller than the sum of its proper divisors (8321653147444).

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

8321144431852 is a wasteful number, since it uses less digits than its factorization.

8321144431852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9084217 (or 9084215 counting only the distinct ones).

The product of its digits is 737280, while the sum is 46.

The spelling of 8321144431852 in words is "eight trillion, three hundred twenty-one billion, one hundred forty-four million, four hundred thirty-one thousand, eight hundred fifty-two".