8817438621152 has 24 divisors (see below), whose sum is σ = 19839236898096. Its totient is φ = 3778902266112.

The previous prime is 8817438621149. The next prime is 8817438621253. The reversal of 8817438621152 is 2511268347188.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

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, 19681782413 + ... + 19681782860.

It is an arithmetic number, because the mean of its divisors is an integer number (826634870754).

Almost surely, 2^{8817438621152} is an apocalyptic number.

It is an amenable number.

8817438621152 is an abundant number, since it is smaller than the sum of its proper divisors (11021798276944).

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

8817438621152 is a wasteful number, since it uses less digits than its factorization.

8817438621152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39363565290 (or 39363565282 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 56.

The spelling of 8817438621152 in words is "eight trillion, eight hundred seventeen billion, four hundred thirty-eight million, six hundred twenty-one thousand, one hundred fifty-two".