8619944043 has 4 divisors (see below), whose sum is σ = 11493258728. Its totient is φ = 5746629360.

The previous prime is 8619944023. The next prime is 8619944051. The reversal of 8619944043 is 3404499168.

It is a happy number.

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

It is not a de Polignac number, because 8619944043 - 2³⁰ = 7546202219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8619943983 and 8619944001.

It is not an unprimeable number, because it can be changed into a prime (8619944023) 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, 1436657338 + ... + 1436657343.

It is an arithmetic number, because the mean of its divisors is an integer number (2873314682).

Almost surely, 2^8619944043 is an apocalyptic number.

8619944043 is a deficient number, since it is larger than the sum of its proper divisors (2873314685).

8619944043 is a wasteful number, since it uses less digits than its factorization.

8619944043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2873314684.

The product of its (nonzero) digits is 746496, while the sum is 48.

The square root of 8619944043 is about 92843.6537572709. The cubic root of 8619944043 is about 2050.3821649602.

The spelling of 8619944043 in words is "eight billion, six hundred nineteen million, nine hundred forty-four thousand, forty-three".