8864836872440 has 16 divisors (see below), whose sum is σ = 19945882963080. Its totient is φ = 3545934748960.

The previous prime is 8864836872421. The next prime is 8864836872497. The reversal of 8864836872440 is 442786384688.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110810460866 + ... + 110810460945.

Almost surely, 2^{8864836872440} is an apocalyptic number.

It is an amenable number.

8864836872440 is an abundant number, since it is smaller than the sum of its proper divisors (11081046090640).

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

8864836872440 is a wasteful number, since it uses less digits than its factorization.

8864836872440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221620921822 (or 221620921818 counting only the distinct ones).

The product of its (nonzero) digits is 396361728, while the sum is 68.

The spelling of 8864836872440 in words is "eight trillion, eight hundred sixty-four billion, eight hundred thirty-six million, eight hundred seventy-two thousand, four hundred forty".