44000000857 has 4 divisors (see below), whose sum is σ = 44936171136. Its totient is φ = 43063830580.

The previous prime is 44000000833. The next prime is 44000000867. The reversal of 44000000857 is 75800000044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44000000857 - 2¹⁹ = 43999476569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44000000867) 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, 468085069 + ... + 468085162.

It is an arithmetic number, because the mean of its divisors is an integer number (11234042784).

Almost surely, 2^44000000857 is an apocalyptic number.

44000000857 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

44000000857 is a deficient number, since it is larger than the sum of its proper divisors (936170279).

44000000857 is an equidigital number, since it uses as much as digits as its factorization.

44000000857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936170278.

The product of its (nonzero) digits is 4480, while the sum is 28.

The spelling of 44000000857 in words is "forty-four billion, eight hundred fifty-seven", and thus it is an aban number.