938844932257009 has 8 divisors (see below), whose sum is σ = 938876873937920. Its totient is φ = 938812991222736.

The previous prime is 938844932256991. The next prime is 938844932257031. The reversal of 938844932257009 is 900752239448839.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 3-Lehmer number, since φ(938844932257009) divides (938844932257009-1)³.

It is a cyclic number.

It is a Carmichael number.

It is a de Polignac number, because none of the positive numbers 2^k-938844932257009 is a prime.

It is a deceptive number, since it divides R_{938844932257008}.

It is not an unprimeable number, because it can be changed into a prime (938844932257109) by changing a digit.

It is a Zeisel number, with parameters (1, 53886).

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5807482822 + ... + 5807644480.

It is an arithmetic number, because the mean of its divisors is an integer number (117359609242240).

It is a Poulet number, since it divides 2^{938844932257008}-1.

Almost surely, 2^{938844932257009} is an apocalyptic number.

It is an amenable number.

938844932257009 is a deficient number, since it is larger than the sum of its proper divisors (31941680911).

938844932257009 is a wasteful number, since it uses less digits than its factorization.

938844932257009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323319.

The product of its (nonzero) digits is 940584960, while the sum is 73.

The spelling of 938844932257009 in words is "nine hundred thirty-eight trillion, eight hundred forty-four billion, nine hundred thirty-two million, two hundred fifty-seven thousand, nine".