8861438263 has 4 divisors (see below), whose sum is σ = 8862043528. Its totient is φ = 8860833000.

The previous prime is 8861438251. The next prime is 8861438279. The reversal of 8861438263 is 3628341688.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8861438263 - 2⁵ = 8861438231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861432263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280113 + ... + 310138.

It is an arithmetic number, because the mean of its divisors is an integer number (2215510882).

Almost surely, 2^8861438263 is an apocalyptic number.

8861438263 is a deficient number, since it is larger than the sum of its proper divisors (605265).

8861438263 is a wasteful number, since it uses less digits than its factorization.

8861438263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605264.

The product of its digits is 1327104, while the sum is 49.

The square root of 8861438263 is about 94135.2126624251. The cubic root of 8861438263 is about 2069.3537515262.

The spelling of 8861438263 in words is "eight billion, eight hundred sixty-one million, four hundred thirty-eight thousand, two hundred sixty-three".