8945553863 has 6 divisors (see below), whose sum is σ = 9099746784. Its totient is φ = 8793930884.

The previous prime is 8945553853. The next prime is 8945553887. The reversal of 8945553863 is 3683555498.

It is not a de Polignac number, because 8945553863 - 2¹⁶ = 8945488327 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8945553799 and 8945553808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8945553853) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1281431 + ... + 1288392.

It is an arithmetic number, because the mean of its divisors is an integer number (1516624464).

Almost surely, 2^8945553863 is an apocalyptic number.

8945553863 is a deficient number, since it is larger than the sum of its proper divisors (154192921).

8945553863 is an equidigital number, since it uses as much as digits as its factorization.

8945553863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569941 (or 2569882 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 56.

The square root of 8945553863 is about 94580.9381588066. The cubic root of 8945553863 is about 2075.8807980204.

The spelling of 8945553863 in words is "eight billion, nine hundred forty-five million, five hundred fifty-three thousand, eight hundred sixty-three".